-
Open Access Article
1 - Investigating the prevalence of resistance genes in Listeria monocytogenes isolated from food samples
Mohammad Reza Saebi Fahimeh nourbakhsh Hossein Khodabandeh shahrakiListeria monocytogenes (L. monocytogenes) is a type of pathogenic bacteria that causes listeriosis infection. This facultative anaerobic bacterium is able to survive in the presence and absence of oxygen and is the cause of a wide range of diseases in humans and animals MoreListeria monocytogenes (L. monocytogenes) is a type of pathogenic bacteria that causes listeriosis infection. This facultative anaerobic bacterium is able to survive in the presence and absence of oxygen and is the cause of a wide range of diseases in humans and animals. Consumption of contaminated dairy products, meat and vegetables is the most important source of contamination. There are limited studies of the antibiotic resistance of Listeria monocytogenes species. Therefore, this study aims to evaluate the frequency and level of resistance in the evaluated samples. In this descriptive cross-sectional study, 150 different samples were randomly collected from different regions of Isfahan province. The samples included 60 samples of meat, 40 samples of dairy products (including milk, cheese, etc.) and 50 samples of vegetables (including leek, watercress, radish and basil). The serotyping of the isolated strains was done using the commercial O and H antisera of Listeria monocytogenes and according to the manufacturer's instructions, using slide agglutination method and antibiotic resistance evaluation. Standard PCR method was used to detect ermA, ermB, strA, tetS, tetA and ermC genes in the strains. Based on the serological reaction, somatic antigens O and flagella H of Listeria monocytogenes with the corresponding antisera, most Listeria species (70%) belong to serotype 1.2a and the rest from serotype 1.2b (19%) and 4b (11 %) They were. The results of the microbial investigation showed that the highest drug resistance was related to streptomycin (89%) and the lowest drug resistance in the evaluated isolates was related to ampicillin (14%) and chloramphenicol (13%). The most evaluated genes were related to strA gene and ermA gene, with frequencies of 79.8% and 65.4%, respectively. The prevalence of other Listeria monocytogenes genes evaluated in this study included tetA (17%), tetS (2.5%), ermB (10.7%) and ermC (2.1%). Manuscript profile -
Open Access Article
2 - Three-Body force effects on breakup and formation of 6Li nuclei
Hossein Sadeghi Shahla Nahidinezhad -
Open Access Article
3 - AC impedance spectroscopy and conductivity studies of Dy doped Bi4V2O11 ceramics
Sasmitarani Bag Parthasarathi Das Banarji Behera -
Open Access Article
4 - Exactly solvable reaction diffusion models on a Bethe Lattice through the empty-interval method
Laleh Farhang Matin -
Open Access Article
5 - Semiclassical treatment of fusion and breakup processes of 6,8documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$^{6,8}$$end{document}He halo nuclei
Fouad A. Majeed Yousif A. Abdul-Hussien -
Open Access Article
6 - Performance assessment of a food safety management system in meat processing plants and the local market of Tehran: A microbial source tracking study
Hossein Nazarian Masoumeh Moslemi Zahra Pilevar Leyla Alizadeh Hedayat Hosseini -
Open Access Article
7 - Turing instability and pattern formation in reaction-diffusion models
َAli AtabaigiPatterns are found everywhere and the past fifty years studies have advanced our understanding of the mechanisms . In this paper, we study those systems that develop temporary patterns. Special emphasis is made on Turing instabilities as one of the most common sources o MorePatterns are found everywhere and the past fifty years studies have advanced our understanding of the mechanisms . In this paper, we study those systems that develop temporary patterns. Special emphasis is made on Turing instabilities as one of the most common sources of pattern formation. Gierer-Meinhardt model acts as one of prototypical reaction diffusion systems describing pattern formation phenomena in natural events. Bifurcation analysis, including theoretical and numerical analysis, is carried out on the Gierer-Meinhardt activator-substrate model. The effects of diffusion on the stability of equilibrium points is investigated. It shows that under some conditions, diffusion-driven instability, i.e, the Turing instability, about the equilibrium point will occur, which is stable without diffusion. These diffusion-driven instabilities will lead to the occurrence of spatially nonhomogeneous solutions. Consequently, some pattern formations, like stripe and spots solutions, will appear. To illustrate theoretical analysis, we carry out numerical simulations. These diffusion-driven instabilities will lead to the occurrence of spatially nonhomogeneous solutions. Consequently, some pattern formations, like stripe and spots solutions, will appear. To illustrate theoretical analysis, we carry out numerical simulations. Manuscript profile -
Open Access Article
8 - Compulsive Geniture or Voluntary Departure “A review or the, consequences of criminalization and decriminalization on abortion”
Reza MohajerinThis article examines various aspects of abortion from a criminological perspective. Theseaspects are distinguished from each other on basis of their nature and sources for its betterunderstanding and convenient studying.Although according to Islamic Criminal law aborti MoreThis article examines various aspects of abortion from a criminological perspective. Theseaspects are distinguished from each other on basis of their nature and sources for its betterunderstanding and convenient studying.Although according to Islamic Criminal law abortion is a violent crime and thereforeoffenders are imposed severe punishment, the necessity of taking a different approach to ourlaw is unavoidable. Because of direction of applying protective policies to them in conformationwith International standards on the one hand, and vulnerabilities to violent behaviors andincrease of next crimes on the other hand, decriminalization from abortion is a must.Hence, criminalization of abortion is the basis of creating further crimes and decriminalizationof abortion will prevent further crimes Manuscript profile -
Open Access Article
9 - The relationship between financial distress risk and momentum anomaly in Tehran stock exchange
Hamidreza Vakilifard Meysam Ahmadvand Mohammadjavad SadehvandThis paper is to study the relationship between momentum effect (continuation of prior returns) and financial distress risk using data from companies listed on Tehran stock exchange during 31/01/1387-31/04/1393. In this research, financial distress risk was calculated b MoreThis paper is to study the relationship between momentum effect (continuation of prior returns) and financial distress risk using data from companies listed on Tehran stock exchange during 31/01/1387-31/04/1393. In this research, financial distress risk was calculated by the second version of Altman Z-Score model. To describe momentum effect, by determining the formation period to be 6 months, and the holding period to be 3, 6, or 12 months, we firstly examined the profitability of short term (3/6), midterm (6/6), and long term (12/6) momentum strategies and found that during abovementioned time period, only midterm momentum strategy was profitable. Then, we showed that momentum anomaly was driven by market under-reaction to financial distress risk. In other words, it can be said that momentum is proxying for distress risk, and is largely subsumed by distress risk factor. Manuscript profile -
Open Access Article
10 - The Study Of The beneficially Contrarian Investment Strategy To Gain The Return And Analyze Sensitivity Of Financial Indicators By Using Tukey Test In Tehran Stock Exchange
محمود معین الدین شهناز نایب زاده رسول زارع مهرجردی علی فاضل یزدیIn capital markets and behavioral finance literature, according to the different reactionof investors and in order to increase the return of capital and earn returns in excess of theexpected return, different investment strategies are presented. Contrarian InvestmentStr MoreIn capital markets and behavioral finance literature, according to the different reactionof investors and in order to increase the return of capital and earn returns in excess of theexpected return, different investment strategies are presented. Contrarian InvestmentStrategy is one of these strategies, this strategy is based on the hypothesis of investor'soverreaction. However, knowing how to use contrarian investment strategy can helpinvestors to choose the appropriate stock in order to achieve maximum return. Thisresearch examines gain return by using contrarian investment strategy and analyzesSensitivity of Financial indicators in Tehran Stock Exchange. In order to conductresearch, first the period of research was divided into 16 establishment and test periodsand in establishment period, based on 11 research variables (Sale, Operating profit,Operating Cash Flow, Stock returns, the ratio of Sales to assets ratio, the ratio ofoperating profit to investment, the ratio of operating cash flow to investment, Return onassets, Return on equity, Earnings per share and The ratio of net profit to sales), thecompanies divided to two portfolio winners and losers, and then in test period, the winnerand loser portfolio return was calculated and compared. The results of researchhypotheses Show that by using Contrarian Investment Strategy, additional return can begained in Tehran Stock Exchange and also investors in each different period ofestablishment and test, show overreaction towards certain variables. Manuscript profile -
Open Access Article
11 - Investors Cognitive biases Effect on Stock Valuation
هاشم نیکومرام فریدون رهنمای رودپشتی فرشاد هیبتی شهره یزدانیFrom 1980, when behavioral Faineance was raised, rationality of investors andstock exchange efficiency were criticized. The behavioral finance literature assumesthat investors are subject to behavioral biases and overreact or under react toinformation received that resu MoreFrom 1980, when behavioral Faineance was raised, rationality of investors andstock exchange efficiency were criticized. The behavioral finance literature assumesthat investors are subject to behavioral biases and overreact or under react toinformation received that results in stock misevaluation.In this paper stock misevaluation is measured following Rodes-Kropf et.al.(2005)and based on financial information of individual firms and industries .This model presents a new measure of examining misevaluation and predictingfuture stock return.After examining the models in Tehran Stock Exchange (TSE), we constructportfolios on Misv and then investigate investors reaction to the information trends.The results show that there are overreaction and under reaction in TSE affected byRepresentativeness bias and overconfidence and MISV is related with firm size, B/Mratio, liquidity rate, firm age, past stock price and return and EPS Manuscript profile -
Open Access Article
12 - Investors' Overreaction in IRAN Stock Market to Global Financial Crisis News
فرشاد هیبتی وحید زندیهOver the past three decades, the Efficient Market Hypothesis (EMH) has been the foundation for financial asset pricing, and the leading hypothesis in the finance literature to explain and predict the behavior of investors. There are, however, two extensions to the EMH i MoreOver the past three decades, the Efficient Market Hypothesis (EMH) has been the foundation for financial asset pricing, and the leading hypothesis in the finance literature to explain and predict the behavior of investors. There are, however, two extensions to the EMH in the behavioral finance literature that investigate investor reaction when security prices do not adjust instantaneously, the Overreaction Hypothesis (OH) of DeBondt and Thaler (1985) and the Uncertain Information Hypothesis (UIH) of Brown, Harlow and Tinic (1988, 1993). In the other side, we know that Iran international trade volume is not expanded and direct taking impression of Iran security market to global financial recessions and expansions is in doubt. Therefore, observed investors' sentiment in Iran stock market to recent global financial crisis news has resulted in doubt on efficiency of this market, regardless of long or short term return for sensitive industries to this crisis. Thus, we felt need to recognize investors' sentiment to achieve behavioral finance patterns that would be consistent to Iran stock exchange and can be utilized to behavioral modeling of securities. We determined to evaluate and express behavior of investors in Iran stock market for the period 27 April 2008 to 25 April 2010, based on two hypotheses OH and UIH. Our findings show that shareholders' return is consistent with aforesaid two hypotheses and thereupon increase in market uncertainty in some securities, as well as investors' overreaction in some industries while issuance news of arrival and/or recovery global financial crisis. Manuscript profile -
Open Access Article
13 - Empirical test of momentum in financial distress firms: Evidence from Tehran Stock Exchange.
M. Esmaeil Fadaie Nezhad Mohammad Reza MayeliFinancial distress assumption in studies of Chan and Chen (1991) and Fama and French (1992) lead to pricing the risk of financial distress.Ignoring high risk of financial distress in asset pricing model, will lead to positive or negative risk premium on distressed stock MoreFinancial distress assumption in studies of Chan and Chen (1991) and Fama and French (1992) lead to pricing the risk of financial distress.Ignoring high risk of financial distress in asset pricing model, will lead to positive or negative risk premium on distressed stocks. Positive risk premium occurs when we overreact to the financial distress. Negative risk premium will happen in stock pricing when we under react to the financial distress.Under reaction to the financial bankruptcy, will lead distressed companies to have lower returns and momentum return will continue for next period.This research investigates investors’ behavior in response to the financial distress and momentum for healthy and bankruptcy companies while controlling risk factors: size, Book to market and market cap.The results indicate that investors underreact to distressed companies and momentum occurs in these companies. Manuscript profile -
Open Access Article
14 - Earning Response Coefficient (ERC) in Tehran Bourse
حمیدرضا وکیلی فرد علی سعیدی اکبر افتخاری علی آبادیResearches about the relation between Return and EPS since 30 years ago, mentionthat Return is affected by Earning and information related to it.Several researches have studied the relationship between return (as dependentvariable) and earning (as independent variable), MoreResearches about the relation between Return and EPS since 30 years ago, mentionthat Return is affected by Earning and information related to it.Several researches have studied the relationship between return (as dependentvariable) and earning (as independent variable), using regression model. Someresearchers have reported a distinct coefficient in regression analysis when they studiedthe effect of unexpected annual earning as independent variable on abnormal return asrelated variable. In this research, the effect of DPS on return is considered and measured,in high and low return companies in Tehran Stock Exchange, in 2006&2010.Our evaluations through 5 hypothesis showed that the market didn't have any over orunder reaction versus good or bad news.In the other hand, market reaction was not emotional. The results of this researchdetected a considerable difference between ERCs in high-return and low-returncompanies. But they didn't approve any significant relationship between news and marketreaction; except for relationship between bad news and market reaction just in low returncompanies. It means that the market under reacted only versus bad news related to lowreturncompanies. Manuscript profile -
Open Access Article
15 - Women’s Feeling of Social Security and Social Happiness
Zahra Farzizadeh Somayeh Haghi Roghayeh Aghaziyarati -
Open Access Article
16 - The Relationship between Burnout and Job Stress Mediated by Emotional Reactions of Nurses in Social Security Hospitals in Tehran
marzieh nikdel Asal Seraji mouhamad sahebzamaniIntroduction: Job burnout as a major characteristic of job stress is a kind of delayed response to chronic workplace stressors and is one of the most important factors that may predict it. Methods: This is a descriptive survey based on purposeful data gathering method. MoreIntroduction: Job burnout as a major characteristic of job stress is a kind of delayed response to chronic workplace stressors and is one of the most important factors that may predict it. Methods: This is a descriptive survey based on purposeful data gathering method. The study population consisted of 194 nurses working in Tehran Social Security Hospitals. Available necessary information was collected using Steinmetz (1977), Goldard (1), and DASS-21 Emotional Response Questionnaires. Confirmed. Structural equation modeling and imaging software and LISREL were used for data analysis. Results: The results of the hypotheses test showed that job stress at the significant level of 0.01 and anxiety, stress and depression were positively correlated with the level of job burnout at the significant level of 0.05. Also, job stress has a positive effect on emotional response, so occupational stress indirectly influences emotional reaction on nurses' job depression. Conclusion: Recognizing stressful resources and coping strategies can help reduce, control and treat burnout in nurses. Manuscript profile -
Open Access Article
17 - The Evaluation Overreaction of Investors Toward Going Concern (GC) & Going Concern Withdrawal (GCW) Audit Reports
محمدرضا رستمی نازنین حکیمی فرIt has been assumed that investors react to new information in the efficient market.This reaction has been demonstrated in two terms of over reacting & under reacting.The evidence shows that investors overreact or under react to new information.Investors decision ma MoreIt has been assumed that investors react to new information in the efficient market.This reaction has been demonstrated in two terms of over reacting & under reacting.The evidence shows that investors overreact or under react to new information.Investors decision making could be affected by behavioral or psychological factors,they tend to overvalue or undervalue new information. The objective of this study is"investigating market over & under reaction toward going concern (GC) audit reportson Tehran Stock Exchange (TSE)". Study population of this paper includes allcompanies which are accepted by TSE. The required information has been collectedfrom daily, weekly & monthly reports of TSE. Analyses are performed throughLevene's test in order to test the equality of variances, and then we performed Tstudenttest and Prop-test to achieve proper conclusions. In order to predictsignificance of differences between the pure revenues, we fitted the logistic regressionmodel on the difference of the mean revenues and the type of companies.Consequently, with respect to the good behavior of confidence interval's to specifysignificant differences, we proposed the best model in this situation using qualitycontrol tool's, X-bar charts to determine whether the hypothesis is correct or weshould reject the previous result. Statistical tests demonstrate the existence ofoverreaction of mart with respect to presence or absence of activity condition. Manuscript profile -
Open Access Article
18 - The Effect of Accounting Information Quality on the Salience phenomenon
Parvaneh Khaleghi Kasbi Mohammad Ali Aghaei Farzin RezaeiInvestors simplify their decisions and judgements through applying rules of thumbs and processing only a part of available information. Salience indicates the events related to available information taking more weight in future judgements. After the formation of financi MoreInvestors simplify their decisions and judgements through applying rules of thumbs and processing only a part of available information. Salience indicates the events related to available information taking more weight in future judgements. After the formation of financial behavioral theory, the empirical studies have been directed towards the review of relationships between investors tendencies and stock price variations and in this regard, there has been no discussion on which factors affect the behavioral errors of investors and how they can be adjusted; thus, this paper aims to investigate the impact of increased accounting information quality on the decreased salience phenomenon. Therefore, a sample consisting of 600 corporates-years was studied during 2012-2016. the existence of salience phenomenon led to the investors over-reaction followed by inappropriate stock pricing. Thus, when the information quality is high, the relationship between behavioral tensions and stock market price is weaker. Consequently, high quality information reporting can decrease the impact of salient information on investors decisions. Manuscript profile -
Open Access Article
19 - Electrocatalytic properties of platinum and it's binary alloy with vanadium in oxygen reduction reaction(ORR)
Mohammad Yari Sajjad Sedaghat Sherehjini -
Open Access Article
20 - Ab initio Study of Simple Mg-Ene Reactions of Propenyl Magnesium Halides and Ethylene (Type-I Intermolecular Reaction)
Elahe Rajaeian Avat (Arman) Taherpour -
Open Access Article
21 - Ab initio Calculations SWNTs and Investigation of Interaction Atoms of Oxygen with that by Computational Calculations
M. Kia V. Pourghasem F. Niksolat -
Open Access Article
22 - Theoretical Study of Addition Reaction of Carbene and Zigzag Single-walled Carbon Nanotube
Saeid Abedini Khoramie Shahram Moradi Somayeh Miryousefi Samira Eftekharjoo -
Open Access Article
23 - The Study of Salvation Effects on an Anticancer Drug; Dammarane sapogenins
M. Hooshyari F. Naderi M. Yari M. Khaleghian M. Monajjem -
Open Access Article
24 - A simulation study of calcium release channel
M. Monajjemi H.H. Haeri S.M. Hashemianzadeh M. Gholami K. Zare -
Open Access Article
25 - A density functional theory study of the region selectivity of the Diels –Aldercyclo addition of 2 methyl- substituted diene with selected dienophiles
A. Nouri E. Zahedi F. Joneydi Jafari S. Sedaghat -
Open Access Article
26 - The hedging of the article: An analysis of tribal welfare and settlement strategy in Iran
نبی الله RashnooNomad and operance of nomadism on the basis of rangeland and herdkeeping is inaccordance with geographical favor and Iransُ neiborhood with other nalions andnormal olans.Nomadism has always been given specific place in thoughts of social affairsauthorities concerning th MoreNomad and operance of nomadism on the basis of rangeland and herdkeeping is inaccordance with geographical favor and Iransُ neiborhood with other nalions andnormal olans.Nomadism has always been given specific place in thoughts of social affairsauthorities concerning the economical, political, cultural and martial aspects. Thisprocess in the world of newtechnocrats in 3rd millennium that communities relations ingeograghical field is explained, been the reason giving essential priorities inspecificating regional, zoning, national and even global developmental capacities onthe basis os environmental geography.Therefore, reviewing role and effectiveness of nomads livelihood as a part of Iran ssocial system in the process of planning developmental levels emphasizing on castbenefitequation to endevour by macro policy making.If those reviews by academic researehs and finling would be analyzed, could makepossible. Manuscript profile -
Open Access Article
27 - Effect of Millard reaction on antioxidant and emulsifying properties of lentil protein hydrolysate(Lens culinaris)
S. Faraji M. Mirzae S. Mirdamadi Introduction: Protein hydrolysates and bioactive peptides that have health benefits for consumers and protein glycolysis is a well-known strategy for increasing the health benefits and functional qualities of proteins. The subjects of this study were the effects o More Introduction: Protein hydrolysates and bioactive peptides that have health benefits for consumers and protein glycolysis is a well-known strategy for increasing the health benefits and functional qualities of proteins. The subjects of this study were the effects of temperature, pH, and sugar type on the progress of the Mailard reaction in lentil protein hydrolysate, as well as its antioxidant and emulsification capabilities.Materials and Methods: The protein isolated from lentil seeds was hydrolyzed enzymatically by alkalase and mixed with glucose and lactose. Millard reaction occured at temperatures of 60 and 80 ° C and pHs of 6.5 and 11. The reaction progress was tracked over time by measuring the color intensity at 420 nm and the values of free amine groups using OPA method. The ABTS radical scavenging activity and emulsification capabilities of the final products product were analysed.Results: The results revealed that the reaction of lentil protein hydrolysate with glucose at 60 ° C and pH of 6.5 produced the most deep brown color. The findings of measuring the number of free amine groups also confirmed the results. Lactose sugar products with a lesser browning degree have the greatest effect on increasing antioxidant activity. Overall, the antioxidant activity of lentil protein hydrolyate increased from 24.18 to 60.97%, and its emulsifying function was enhanced.Conclusion: Overall, the results demonstrated that the Millard interaction between lentil protein hydrolysate proteins and peptides increases its health and functional qualities, and the product has the potential to be exploited in the formulation of functional foods. Manuscript profile -
Open Access Article
28 - Determination of 5-Hydroxymethylfurfural in Frequently Consumed Dried Fruits in Iran
محمد Alizade نوشین Rahimzade ثریا KheirouriIntoduction: During heat treatment of foods, reactions occur between reducing sugars andamino groups of food components, known as the Maillard reactions. Five hydroxymethyfurfural (HMF) is an intermidiate compoud formed as the result of this reaction. The aim ofthe pres MoreIntoduction: During heat treatment of foods, reactions occur between reducing sugars andamino groups of food components, known as the Maillard reactions. Five hydroxymethyfurfural (HMF) is an intermidiate compoud formed as the result of this reaction. The aim ofthe present study was to examine HMF content of dried fruits and evaluate its relationshipwith the chemical characterisatics.Materials and Methods: Total of 50 samples from various types of dried fruits werecollected and subjected to quantitative HMF determinations employing HPLC apparatus. Thechemical properties of the selected fruits were measured using conventional standardmethods. Pearson analysis was performed to test any correlations between HMF content andthe chemical properties.Results: The highest and the lowest amount of HMF contents were determined in fruit bread(8569.85 mg/kg) and golden raisin (80.49 mg/kg), respectively. Correlation analysis betweenthe chemical properties and HMF content showed a negative relation inrespect of HMF andmoisture content of both currant and dark raisins (r= -0.86, p<0/05) and a positive correlationbetween the acidity and HMF content of fruit breads (r=0.81, p<0.05) and also between totalsugar and HMF contents in date (r=0.81, p<0.05).Conclusion: HMF content of the dried fruits was high with mean of 2243/19 mg/kg. Thismight lead to high dietary exposure to this compound. Further studies are required to clarifythe extent of HMF bioavailability. It is also concluded that the chemical properties affected bypreservation and processing conditions are strongly related to the HMF content in differentfruits. Manuscript profile -
Open Access Article
29 - Evaluation of Anti-Fungal Activity of Boswellia Gum Coating and Its Effect on the Shelf Life of Fresh Hazelnut
M. Smaeil Nasrabadi S. Golghin E. Azadfar H. Nori TopkanloIntroduction: Hazelnuts are rich in fat, protein, minerals and vitamins. If the conditions are unfavorable during storage, mold and aflatoxin production, moisture absorption and oxidative reactions will reduce the quality of the product. The aim of this study was to inv MoreIntroduction: Hazelnuts are rich in fat, protein, minerals and vitamins. If the conditions are unfavorable during storage, mold and aflatoxin production, moisture absorption and oxidative reactions will reduce the quality of the product. The aim of this study was to investigate the effects of hazelnut kernel coating with Boswellia gum on reducing these reactions. Materials and Methods: Boswellia gum was used in different concentrations of zero, 0.5, 1, 1.5 and 2% to cover hazelnut kernels. Hazelnuts kernels were submerged in the prepared coating solutions for 30 seconds and then dried. The effect of oral coating of Boswellia gum on moisture absorption, oil oxidation and fungal growth of samples was studied during five months of storage. Results: The results showed that Boswellia gum significantly (p <0.05) reduced moisture absorption, fungi growth and percentage of Aspergillus mold development as compared to the control sample during storage. The gum also Boswellia significantly reduced peroxide and thiobarbituric acid indices compared to the control sample during storage. Conclusion: The results indicated that for Boswellia edible gum might be employed as a natural preservative hazelnut coating. Manuscript profile -
Open Access Article
30 - Evaluation of Acrylamide Contents of Potato Crisps Sold in Iranian Markets
R. Saeidi Asl M. Iraji Far M. Fahimdanesh -
Open Access Article
31 - Introducing new equations for the reaction coefficient for modelling lead and cadmium heavy metals in riverine systems
Ali Roshanfekr Seyed Mahmood Kashefipour Nematollah JafarzadehPollutant and sediment transport is one of the main problems in riverine and estuarine systems and has negative effect on life. Heavy metals are one of the main pollutants which modelling of these pollutants near the places that humans are living is very important MorePollutant and sediment transport is one of the main problems in riverine and estuarine systems and has negative effect on life. Heavy metals are one of the main pollutants which modelling of these pollutants near the places that humans are living is very important. Heavy metals are non-conservative in nature and there concentration depends on salinity and pH. The objective of this paper is to introduce new equations for the reaction coefficient of lead and cadmium using pH and EC variation in riverine systems. This paper first describes the governing equations of dissolved heavy metals in riverine systems. Then it introduces the FASTER model for modelling the flow and heavy metal concentration downstream of the river. In the current model the one dimensional advection dispersion equation was solved using the new ULTIMATE QUICKEST and FTCS methods. This method has been verified using a standard example and then used to model the heavy metal concentration in Karoon riverine system. In this regard for calibration and verification of the hydrodynamic model, the model was run in the Mollasani-Farsiat reach of the Karoon River and was calibrated using Ahwaz station observed data. In the end some equations were introduced for the reaction coefficient of lead and cadmium heavy metals and used in the model source code. Later the model was run for five different reaction coefficients for lead and cadmium, which are as follow: 1- zero coefficient reaction, 2- constant coefficient reaction, 3- coefficient reaction as a function of pH, 4- coefficient reaction as a function of EC and 5- coefficient reaction as a function of pH and EC. The results of the model calibration and verification for lead and cadmium heavy metals show that selecting a varied reaction coefficient increases the accuracy of the model. Selecting a varied reaction coefficient with pH and EC will increase the accuracy of the model about %91.71 and %97.71 for lead and cadmium respectively. Therefore this model and the new approach can be used as a useful tool for hydro-environmental modelling in riverine systems. Manuscript profile -
Open Access Article
32 - Investigating the effect of Nitric acid (with different normalities) on the efficiency of scoria in Malachite removal from aquatic environments: determination of model, isotherms and reaction kinetics
Kiomars Sharafi Abdollah Dargahi Nahid Azizi Jila Amini Mehdi Ghayebzadeh Zahra Rezai masoud moradiAbstract Background and Objective: Malachite, due to its features and low degradability, can be removed from aquatic environments with difficulty. Given the Nitric acid effect on the physical and chemical characteristics of scoria, this study was to evaluate the effect MoreAbstract Background and Objective: Malachite, due to its features and low degradability, can be removed from aquatic environments with difficulty. Given the Nitric acid effect on the physical and chemical characteristics of scoria, this study was to evaluate the effect of sulfuric acid normality (1, 6 and 12) on the efficiency of scoria in Malachite removal from aquatic environments and to determine model, isotherms and reaction kinetics. Method: Adsorption processes were carried out in vitro at different pH values, adsorbent dosages, contact times and constant concentrations of the dye. Residual concentrations of dye was measured as 665 nm by a spectrophotometer (Cary 50 Perkin Elmer Co). In order to understand the adsorption process, the obtained data were fitted by the Langmuir, Freundlich isotherms, and pseudo-first and second-order kinetics. Findings: The results showed that the dye removal eas increased with the increase of acid normality, pH, adsorbent dosage and contact time. The highest efficiency (100%) was obtained for the adsorbent modified with sulfuric acid 6 and 12 normalities in pH =11, adsorbent dose of 1.4 g/L and contact time of 75 minutes. Adsorption data proper followed both the Langmuir isotherm, Freundlich adsorption and pseudo-second-order kinetic. Discussion and Conclusion: According to the results, it can be concluded that Malachite adsorption by scoria occurs in both multi-and mono-layerd forms and scoria treatment with Nitric acid, due to wide chemical changes (especially silica/alumina ratio) of adsorbent structure, increases the efficiency as compared to natural scoria. Manuscript profile -
Open Access Article
33 - Ozone Concentration and Meteorological Parameters Alternations Investigation in Air Quality Control Company to Aqdasieh Station in 7 Months (from Oct. 2007 to Apr. 2008) in Tehran
Mansour Ghiasodin Leila SouratiIn this research measuring ozone concentration in air quality control Company at Aqdasieh station,and meteorological parameters at Resalat station, was compared and investigated. This investigationwas performed for 7 months (from Oct. 2007 to Apr. 2008). The average dai MoreIn this research measuring ozone concentration in air quality control Company at Aqdasieh station,and meteorological parameters at Resalat station, was compared and investigated. This investigationwas performed for 7 months (from Oct. 2007 to Apr. 2008). The average daily Ozone concentrationshowed the least quantity of Ozone in early morning and late night air. Comparing the sunshineradiation with variation of Ozone concentration indicated that these two items have direct relations.Increasing the sunshine radiation concludes the increasing of photochemical activity and consequentlyincreasing the Ozone concentration. Investigating the monthly average Ozone concentration showedthat the least registered amount of Ozone was during these 7 months of measurement in Azar(November) and the most registered amount of Ozone occurred in Farvardin (April). The mostimportant factor of main increasing happened in April and in the solar radiation and photochemicalactivities. Manuscript profile -
Open Access Article
34 - Evaluation of Investor Reactions by Security Speeds of Price Adjustment towards the Intrinsic Values between different Industries in TSE
Mahdi Madanchi Zaj Behnaz Tolouei Kiarash Mehraniچگونگی واکنش سرمایه گذاران نسبت به اطلاعات محیط اقتصادی ، نقش کلیدی در تعیین میزان کارایی بازارسرمایهدارد. اگر این واکنش صحیح و سریع باشد، بازار سرمایه کارایی قوی دارد، در غیر این صورت، با هرگونه تاخیر و یا اختلال در واکنش سرمایه گذاران، از قدرت کارایی بازار کاسته می&r Moreچگونگی واکنش سرمایه گذاران نسبت به اطلاعات محیط اقتصادی ، نقش کلیدی در تعیین میزان کارایی بازارسرمایهدارد. اگر این واکنش صحیح و سریع باشد، بازار سرمایه کارایی قوی دارد، در غیر این صورت، با هرگونه تاخیر و یا اختلال در واکنش سرمایه گذاران، از قدرت کارایی بازار کاسته می‏شود. در این پژوهش بیش واکنشی سرمایه گذاران با استفاده از روش ارزیابی سرعت تعدیل قیمت سهام در رسیدن به ارزش ذاتی در بازه زمانی05/1/1392 الی 01/03/1396 آزمون شده است. در این راستا سرعت تعدیل شاخص قیمت سهام ده صنعت منتخب بورس (کانیهای ‏فلزی، محصولات کاغذی، محصولات چرمی، فراوردههای ‏نفتی، منسوجات، محصولات دارویی، لاستیک، فلزات اساسی، خودرو و محصولات شیمیایی) بر مبنای چهار رویکرد مدل تعدیل جزئی آمیهود و مندلسون (1987)، داموداران (1993)، نسبتهای اتو کوواریانس و فرآیندهای ARMA تئوبالد و یالوپ (2001، 2002) محاسبه شد. بر اساس برآوردگر نسبت اتو-کوواریانس و رویکرد آمیهود و مندلسون (1987) کمواکنشی در هیچ از صنایع منتخب مشاهده شد. روش ARMAنیز نشان داد در تمامی صنایع بجز صنعت خودرو وجود پدیده کمواکنشی مشاهده شده و در صنعت خودرو بیش واکنشی سرمایهگذاران وجود دارد. بر اساس روش داموداران همه 10 صنعت منتخب سرمایهگذاران بیش واکنشی داشتند. که بر اساس مطالعات مختلف نتایج روش داموداران از قابلیت اعتماد پایینی برخودار است. Manuscript profile -
Open Access Article
35 - Investigate the Effect of Prediction Profit Reporting Tone on Investors' Reactions and Performance Prediction
mahmoud toorchi Mahmoud Lari Dashtebayaz Mohammad Reza RazdarIn recent years, the analysis of various aspects of qualitative information on financial reports is one of the important tools for decision making by investors and other capital market users. The purpose of this study, was to investigate The effect of the earnings forec MoreIn recent years, the analysis of various aspects of qualitative information on financial reports is one of the important tools for decision making by investors and other capital market users. The purpose of this study, was to investigate The effect of the earnings forecast report tone on investor response and performance prediction. To investigate this issue, the present study uses 140 years- company listed companies at Tehran Stock Exchange between 2011 and 2017. In order to test the hypotheses of the research, multiple regression and logistic regression were used. The research findings suggest that earnings forecast report tone is not a suitable tool for investors and other users to predict future earnings and future cash flows (future performance). Also, no significant relationship was found between the earnings forecast report tone with some of the incremental (decreasing) criteria of managers' understanding to manage the report tone, such as renewing the presentation of profits and realizing the near real. In other words, the earnings forecast report tone does not have any effect on the perception and awareness of the investors. Manuscript profile -
Open Access Article
36 - Stock market reactions to earnings management, corporate risk and weak internal controls
sid nia valinia Mohammed Hussain Ranjbar daowd khodadady hojat alaha salariAbstractThe main function of the capital market is to finance productive production and service activities. To achieve this important goal, the shares of companies listed on the capital market must be attractive enough for investors to invest. One of the most important MoreAbstractThe main function of the capital market is to finance productive production and service activities. To achieve this important goal, the shares of companies listed on the capital market must be attractive enough for investors to invest. One of the most important indicators of the attractiveness of a certain company's stock for investors is the return on investment. The return on investment comes more than anything from changes in a company's stock price, and a company's stock price changes come from its internal information management. In this research, a model for the relationship between market reaction and weak internal controls, manipulation of accruals, business risk and financial risk is presented. This research is a purely experimental research, but, according to the analysis of past information, the statistical population of the research is all companies listed on the Tehran Stock Exchange in the period of 2007 to 2018. Finally, for statistical analysis, the calculated variables have been transferred to the Eviews9 software environment. The research findings show that the weakness of internal controls on the manipulation of real data, business risk and financial risk at the probability level. 5% has a significant effect. Manipulation of real information at the 5% probability level has a significant impact on financial and business risk. Manipulation of real information, financial risk and business risk at the 5% probability level have a significant impact on market reaction. Manuscript profile -
Open Access Article
37 - Investigating the effect of underreaction and overreaction on Iran's capital market risk
mojtaba sangari Mohammad Ali Aghaei Fariborz Avazzadeh Fath Ali PirzadThe purpose of the current research is to examine the effect of underreaction and overreaction on the risk distribution of the Iranian capital market. The current research is a post-event descriptive and applied type in terms of purpose. The target statistical populatio MoreThe purpose of the current research is to examine the effect of underreaction and overreaction on the risk distribution of the Iranian capital market. The current research is a post-event descriptive and applied type in terms of purpose. The target statistical population is all active and accepted companies in Tehran Stock Exchange, whose shares were traded in Tehran Stock Exchange from 2010 to 2019, and the statistical sample was selected based on the method of systematic elimination of 182 companies. In order to collect the required data and financial information, primary and secondary data such as reports of financial statements and audited financial statements of stock companies for a period of 10 years have been used and analyzed by Eviews9 software. For the inferential analysis of the variables, various statistical tests were used, including the Limer and Hausman F test, regression test, and panel data. The results of the research showed that there is a positive and significant relationship between underreaction and overreaction with Iran's capital market risk. In other words, incorrect pricing leads to underreaction or overreaction in stock prices from the psychological deviation of the investor, such as the investor's misunderstanding of the company's profit. Manuscript profile -
Open Access Article
38 - Investigating the subjective and objective persistence of earnings components and Investors' Pricing in Pharmaceutical Companies Suspected of Fraud
kaveh parandin babak jamshidinavid mehrdad ghanbary afshin baghfalakiThe main objective of this research is to examine the Mentally and Objective stability of profit components, investor pricing over an 11-year period from 2007 to 2017 with 352 views in 32 suspected fraudulent drug companies admitted to Tehran Stock Exchange. In this res MoreThe main objective of this research is to examine the Mentally and Objective stability of profit components, investor pricing over an 11-year period from 2007 to 2017 with 352 views in 32 suspected fraudulent drug companies admitted to Tehran Stock Exchange. In this research, the method of M Banish score model has been used to identify suspected fraudulent companies. In order to analyze the data and test the hypotheses, the simulation model of Mishkin (1983) has been used with combined data approach and multivariate regression model using Eviews version 10 software. The research findings indicate that the sustainability of the cash component of profit is significantly higher than the accruals component of the earnings and investors predict less and better the components of the financial sustainability of the cash component and the earnings accrual respectively. The results also show that the mental sustainability of the cash component and the earnings accrual is higher than their objective being. In other words, investors value the profitability of suspected drug fraud companies incorrectly, and the capital market does not work well with the components of profit information. Manuscript profile -
Open Access Article
39 - Theoretical Explanation of Earnings-Announcement Timing To judge (behavior) investors with a Critical Approach
Hassan Chenari Bouket Bahman Banimahd Hamid AhmadzadehAbstract: Recent empirical research has found that when a firm releases its earnings report earlier than expected, its stock price rises, on average, while if the report is late, its stock price declines. The analysis here focuses on two alternative explanations for the MoreAbstract: Recent empirical research has found that when a firm releases its earnings report earlier than expected, its stock price rises, on average, while if the report is late, its stock price declines. The analysis here focuses on two alternative explanations for these findings, each based on the premise that some firms with unfavorable earnings increase their reported income through earnings management. In one case earnings management necessitates a reporting delay, while in the other a delay is caused by the manager’s desire to first observe other firms’ earnings. Both cases lead to market reactions consistent with the empirical findings. Manuscript profile -
Open Access Article
40 - Capital market anomalies and Portfolio – selection Strategies in the Tehran stock market
Shahnaz Nayebzade Qodsiyeh Mahmoudi KohaniThere are numerous studies concerning market anomalies and capital market inefficiencies. The existing evidences challenge the efficient market hypothesis and declare that investors overprice the winners’ stocks while the losers’ are under-priced. This defic MoreThere are numerous studies concerning market anomalies and capital market inefficiencies. The existing evidences challenge the efficient market hypothesis and declare that investors overprice the winners’ stocks while the losers’ are under-priced. This deficiency will be discovered by the market after a few times and there will be a balance then. The purpose of this paper is to present a new strategy of portfolio selection. This study is an applied research and covers eight years (1382-1389) of 60 firms listed on Tehran Stock Exchange. The findings reveal that the higher the stock prices of the firms with higher (lower) abnormal accumulated return, the higher (lower) they are priced and finally their return in long-term will be lower (higher). Considering this issue leads to the profitability of the portfolio. Manuscript profile -
Open Access Article
41 - Initial public offering (IPO) price Short-term Overreaction: The Effect of price and other factors in Tehran Stock Exchange
Maryam khalili Araghi Bahman EsmaeiliInitial public offering of shares (IPO) and short-term abnormal returns compared to other shares, has been accounted by numerous studies worldwide. Studies indicate that short-term returns rather than Initial stock offering and also long-term returns less than mar MoreInitial public offering of shares (IPO) and short-term abnormal returns compared to other shares, has been accounted by numerous studies worldwide. Studies indicate that short-term returns rather than Initial stock offering and also long-term returns less than market return.Partial reaction to some short-term phenomena due to asymmetric information among decision maker did not match as well as the appropriate response to the economic phenomena. One of the basic assumptions of behavioral finance is overreaction that the main cause of such behavior on investors is representativeness heuristics. In this study, the initial overreaction over Tehran stock Exchange has been approved by the cumulative average returns(CAR) and buy and hold(B&H) method and the results confirm that the influence of price on the overreaction.Lower(higher) price leads to higher (lower) return and thus to overreaction. Manuscript profile -
Open Access Article
42 - Investor sentiment under representativeness heuristic: The case of Tehran Stock Exchange
Mehdi Rezayati Kazem Chavoshi Mohsen Sohrabi araghiToo many researches, in spite of standard finance show that investors are not completely rational and investor sentiment plays a key role in prediction of their behavior. Behavioral finance claims that agents, under the psychological phenomena's, deviate from rational b MoreToo many researches, in spite of standard finance show that investors are not completely rational and investor sentiment plays a key role in prediction of their behavior. Behavioral finance claims that agents, under the psychological phenomena's, deviate from rational behavior. In this research we have investigated the effects of unexpected earnings on investor sentiment, under the representativeness heuristics phenomena. Investor sentiment is measured by ARMS index and the research methodology is based on Granger causality test and also event study. Data's are market and accounting data of Tehran stock exchange listed companies, between the years 2001 to 2013. Results indicate that investor sentiment is predictable by past unexpected earning's. Manuscript profile -
Open Access Article
43 - Examination of investor reaction to unexpected economic and political events in Tehran stock market
Zahra Dianati deylami Mostafa Dinmohamadi Saeid MotamediThis study examines the effect of economic and political news on Tehran Stock Exchange during the years 2001 to 2009. In order to investigate the investors’ behaviors, we used the total daily index of stock exchange. The investors’ reaction was evaluated fro MoreThis study examines the effect of economic and political news on Tehran Stock Exchange during the years 2001 to 2009. In order to investigate the investors’ behaviors, we used the total daily index of stock exchange. The investors’ reaction was evaluated from two perspectives of “Overreaction Hypothesis” and “Uncertain Information Hypothesis”. Results of this study indicate the existence of overreaction in investor’s behaviors in the time of announcing good and bad news in stock market. Also the results shows that the reaction of Tehran stock exchange’s investors to good news is faster than bad news, but changing stock price slope in good news is faster than bad news. Additionally, research results show that investment risk in days after publishing news (even good or bad) has more than normal days. Manuscript profile -
Open Access Article
44 - Price Limit Effects on Stock Prices Behavior: A Contrarian Investment Strategy Approach
Hamid Reza Vakili fard Jalal Seifoddini Arash Abjadpour Hossein MaghsoudPrice limit is a kind of circuit breaker which is used in developing stock exchanges and futures markets to prevent extreme price volatility, price manipulation, and financial crashes. Generally speaking, researchers and market participant usually disagree about price MorePrice limit is a kind of circuit breaker which is used in developing stock exchanges and futures markets to prevent extreme price volatility, price manipulation, and financial crashes. Generally speaking, researchers and market participant usually disagree about price limit application, its efficiency, and optimum range. Pros believe although price limit may delay price discovery, it prevents extreme price volatility and overreaction. On the other hand, cons assert that price limit causes price volatility spillover and intensify investor’s overreaction. Since there is no consensus over the price limit application and efficiency, it is recommended to study this issue using different methods. Therefore, we are trying to study price limit effects in Tehran Stock Exchange using Contrarian Investment Strategy. Our results show that price limit application in Tehran Stock Exchange delays price discovery but has nothing to do with investor’s overreaction. Consequently, it seems that regulators have prevented extreme volatility, although this constraint delays price discovery and reduces market efficiency. Manuscript profile -
Open Access Article
45 - Investigation of Quick Reaction of Tehran Securities Exchange to International Economic Announcement Publications
Ahmadreza Shiri Mehdi KhorramabadiVolatility of price movements on stock security exchange is of great importance. Entering of new information to stock security exchange can result in price movement volatility. With regard to this important point, this research is aimed at considering the quick reaction MoreVolatility of price movements on stock security exchange is of great importance. Entering of new information to stock security exchange can result in price movement volatility. With regard to this important point, this research is aimed at considering the quick reaction of Tehran Security Exchange to the internationally published economic announcements. Since U.S economy is known as the axis of economic crises of the world, the quick effect of U.S Job Union (USJU) which is grounded on job opportunities reduction rates has been investigated on Tehran Exchange Security by event study methodology during 1390. The research’s results which have been done on a sample containing 5o listed companies of Tehran Security Exchange during 1990 indicated that the USJU’s internationally published announcement has no information effect on Tehran Security Exchange. Manuscript profile -
Open Access Article
46 - Speed of Adjustment Scurities Prices, A Method for Evaluating of Investors Overreaction & Underreaction and Financial Markets Efficiently: Approches, Models and Results
Hashem Nikoumaram Ali Saeedi Fereydoun Rahnamay Roodposhti Mahdi Madanchi ZajOverreaction and underreaction phenomena in financial markets reflect it’s inefficiently. Different methods are suggested for evaluation of overreaction and under reaction in researches. One of these methods is measurement of the securities price adjustment speed. MoreOverreaction and underreaction phenomena in financial markets reflect it’s inefficiently. Different methods are suggested for evaluation of overreaction and under reaction in researches. One of these methods is measurement of the securities price adjustment speed. Speed of price adjustment securities is time duration that information absorbed in stock prices and reach stock price to their intrinsic values. At this article, is classified several researches to three approaches and described different models and then presented their results. Also the determinants for delayed Stock price adjustment is described and finally is explored Iran capital market specifications and propose some practical suggestions for increasing the stocks adjustment speed improving capital market efficiently. Manuscript profile -
Open Access Article
47 - Analysis of Behavioral Reactions in Tehran Stock Exchange
Hamidreza Vakilifard Ali Saeedi Akbar Eftekhari AliabadiThrough Behavioral finance, researchers faced with many exceptions in financial markets and concluded that psychological phenomena play an important role to determine financial markets behavior. In this research, different types of investors’ behavior have been re MoreThrough Behavioral finance, researchers faced with many exceptions in financial markets and concluded that psychological phenomena play an important role to determine financial markets behavior. In this research, different types of investors’ behavior have been recognized in different time scales. A general model for Tehran Stock Exchange has been designed by using the time series data, from 2006 to 2010. Wavelet analysis has been used as a statistical and analytical tool to explain trait and multi resolution. Research results show that investors have different reaction after good or bad news,their reaction in long term scale is more distinct than short term. Return of investment derived by price is different in various periods after good or bad news; it has the same trade as the direction of EPS adjustment in short term. But this trend isn’t recognized in long term. Manuscript profile -
Open Access Article
48 - MDH Flow Past a Vertical Rotating Plate with Chemical Reaction and Mass Diffusion in the Presence of Hall Current
Neetu Kanaujia‎ U S Rajput -
Open Access Article
49 - مطالعه عددی دو مکانیزم واکنشی روی شعله Delft III با استفاده از شبیهسازی گردابههای بزرگ و رهیافت بستگی ممان مشروط
مهدی زکیانی رودسرییک مدل بستگی ممان مشروط همراه با رویکرد پیشرفته LES برای شبیهسازی شعله هدف کارگاه آموزشی TNF، شعله متان پایلوت Delft II، استفاده شده است. برای مدلسازی مقیاسهای زیرشبکهای، در این پژوهش از مدل اسماگورینکی ثابت استفاده شده است. مدل بستگی ممان مشروط مرتبه اول برای مدلس Moreیک مدل بستگی ممان مشروط همراه با رویکرد پیشرفته LES برای شبیهسازی شعله هدف کارگاه آموزشی TNF، شعله متان پایلوت Delft II، استفاده شده است. برای مدلسازی مقیاسهای زیرشبکهای، در این پژوهش از مدل اسماگورینکی ثابت استفاده شده است. مدل بستگی ممان مشروط مرتبه اول برای مدلسازی اندرکنش جریان آشفته-واکنش شیمیایی استفاده میشود. برای محاسبه سرعت مشروط و اتلاف اسکالر مشروط از میانگینگیری حجمی مشروط با هموارسازی استفاده میشود. برای مطالعه اثر مکانیزم شیمیایی، از دو مکانیسم مختلف واکنش متان استفاده میشود. اولین مکانیسم شیمیایی متان، یک مرحلهای با 4 گونه و 1 واکنش است. مکانیسم دوم، مکانیسم شیمیایی اسموک است که از 16 گونه و 25 واکنش تشکیل شده است. برای انتگرالگیری در زمان،معادلات ناویر-استوکس فیلتر شده، از یک روش پیشبینیکننده- تصحیحکننده دقیق مرتبه دوم زمانی استفاده میشود. نشان داده شده است که مکانیسم واکنش تقریباً هیچ تأثیری بر میدان سرعت و میدانهای اسکالر ندارد. با این حال، میدان دما با استفاده از مکانیسم واکنش پیچیدهتر تحت تأثیر قرار میگیرد. Manuscript profile -
Open Access Article
50 - MHD boundary layer heat and mass transfer of a chemically reacting Casson fluid over a permeable stretching surface with non-uniform heat source/sink
B. J. Gireesha‎ B. Mahanthesh‎ M. M. Rashidi‎ -
Open Access Article
51 - Double diffusive reaction-convection in viscous fluid layer
Vinod K. Gupta A. K. Singh -
Open Access Article
52 - Evaluation of higher-order multicomponent reactions and biological applications of their products
sima kalhor sima kalhor زهرا کلهرMulticomponent reactions (MCRs) are by far the most successful class of reactions leading to high structural diversity and molecular complexity through a single transformation. As part of the ongoing search for pharmacologically active lead structures, the obtained stru MoreMulticomponent reactions (MCRs) are by far the most successful class of reactions leading to high structural diversity and molecular complexity through a single transformation. As part of the ongoing search for pharmacologically active lead structures, the obtained structural diversity allows for the fast exploration of a large chemical space. Not surprisingly, the development of MCRs, leading to new structural frameworks or serving as key transformations in the total synthesis of natural products, has expanded rapidly over the last few decades. To date a multitude of new three- and four-component reactions have already been described; however, examples of ‘‘higher-order’’ MCRs where five or even more components are combined in a single reaction vessel are remarkably scarce. With the growing interest for biologically active small molecules at the end of the 20th century, the application of MCRs to create libraries of such small, drug-like molecules was investigated with a steadily increasing intensity by industry and academia as a result of its superiority over other approaches (i.e. the use of readily available starting materials, inexpensive and easy to carry out chemistry, broad product spectra, high diversity in few steps, ease of automation, etc). This tutorial review aims to critically describe the developments achieved in recent years, charting the ideas, challenges, and milestone reactions that were essential for the progress of this field. Manuscript profile -
Open Access Article
53 - Spectrophotometrc Methods for the Determination of Ambrisentan Using Charge Transfer Reagents
Burla Sunitha Venkata Seshamamba Peruri Veera Venkata Satyanarayana Chandra Bala Sekaran -
Open Access Article
54 - Application of Water for Synthesis of Cyclopentadienes via Multi-component Reactions of N-methyl imidazole
Alireza Ahmadi Agh Mashhadi Zinatossadat Hossaini -
Open Access Article
55 - Preparation and Application of Fe3O4@SiO2@OSO3H Nanocomposite as a Green Catalyst for the Synthesis of Octahydroquinazolinones
Mohammad Ali Ghasemzadeh -
Open Access Article
56 - Three-component Process for the Synthesis of Some Thiophene Derivatives Using Water as a Green Media
Ali Varasteh Moradi -
Open Access Article
57 - Synthesis of 1,4-disubstituted 1,2,3-triazoles Catalyzed by Eggshell-supported-Cu(I) Metformin Complex as a Heterogeneous Catalyst in Water
Mohammad Bakherad Raheleh Doosti Zeynab Qasemifar -
Open Access Article
58 - Green Synthesis and Investigation of Antioxidant Activity of New Quinoline Derivatives
Seyyed Ali Moghaddas Zinatossadat Hossaini Daryoush Zareyee -
Open Access Article
59 - Three-component Process for the Synthesis of Some Substituted Pyrroles using Water as a Green Solvent
Fatemeh Sheikholeslami-Farahani -
Open Access Article
60 - One-pot Synthesis of 2-amino-4H-chromene Derivatives as Potential Antimicrobial Agents using DABCO-CuCl Complex as an Effective Catalyst
Bita Baghernejad Samaneh Koosha -
Open Access Article
61 - One-pot Synthesis of Amidoalkyl Naphthol Derivatives as Potential Nucleoside Antibiotics and HIV Protease Inhibitors using Nano-SnO2 as an Efficient Catalyst
Bita Baghernejad Elham Ashoori -
Open Access Article
62 - Fe3O4@SiO2/Kit-6 as a Magnetic Nano-Catalyst for the Synthesis of New Coumarin Fused Pyrrole Derivatives
Elham Sadr Hossein Anaraki-Ardakani Soheil Sayyahi Farzaneh Hosseini -
Open Access Article
63 - Synthesis and Molecular Docking studies of Some Tetrahydroimidazo[1,2-a] pyridine Derivatives as Potent α-Glucosidase Inhibitors
Mohammad R. Asghariganjeh Ali A. Mohammadi Elham Tahanpesar Ayeh Rayatzadeh Somayeh Makarem -
Open Access Article
64 - One-pot Four-component Reaction for Convenient Synthesis of New Quinoxaline Derivatives in the Presence of K2CO3
Sama Taherjoo Anvar Mirzaei -
Open Access Article
65 - BF3-SiO2 Nanoparticles: An Efficient Catalyst for the Multi-Component Synthesis of 3-(α-aroylamido) 4-hydroxycoumarin Derivatives in Water
Mona Arfavi-Safari Hossein Anaraki-Ardakani Rashid Badri Elham Tahanpesar -
Open Access Article
66 - Nano SnCl2-SiO2 Catalyzed Facile Synthesis of Aryloylamido Coumarins Derivatives
Hossein Anaraki-Ardakani -
Open Access Article
67 - Synthesis and characterization of bifunctional basic mesoporous organosilica catalyst as an efficient and ecofriendly nanocomposite in Biginelli condensation reaction
Fatemeh Ghalambaz Asadollah Farhadi Ali Reza Kiasat Rashid Badri -
Open Access Article
68 - Nickel Oxide/Carbon Nanotubes as Active Hybrid Material for Oxygen Evolution Reaction
Moein Mohseni Fereshteh Chekin Shahla Fathi -
Open Access Article
69 - Application of H2O as the Green Solvent for the Synthesis of Phosphonates via Multicomponent Reactions
Fatemeh Sheikholeslami-Farahani -
Open Access Article
70 - Design, Characterization and Application of N1,N1,N2,N2-Tetramethyl-N1,N2-bis(sulfo)ethane-1,2-diaminium Trifluoroacetate as a Novel Ionic-Liquid Catalyst for the Production of Polyhydroquinolines
Zahra Kordrostami Abdolkarim Zare -
Open Access Article
71 - One-pot Synthesis of Xanthene Derivatives as Potential Antiviral and Anti-inflammatory Agents using Nano-SnO2 as an Efficient Catalyst
Bita Baghernejad Mahsa Fiuzat -
Open Access Article
72 - Application of Green Chemistry in the Synthesis of Thiopyran Derivatives
Fatemeh Sheikholeslami-Farahani -
Open Access Article
73 - Application of ZnO Nanorods for the Synthesis of Thiazole Derivatives via Multicomponent Reactions in Water
Ali Varasteh Moradi -
Open Access Article
74 - Lactic acid-catalyzed Eco-friendly Cyclization Reaction for the Synthesis of 4H-benzo[b]pyrans and 3,4-dihydropyrano[c]chromenes in EtOH/H2O as an Efficient Green Reaction Medium
Nourallah Hazeri Mojtaba Lashkari Homayoun Faroughi Niya Hamed Pourbalouch -
Open Access Article
75 - Solvent-Free Multicomponent Reactions of Dithiocarbamates, Activated Acetylenes and Isocyanides
F. Rostami-Charati Z. Hossaini R. Hajinasiri -
Open Access Article
76 - Caro’sacid-silicagel: An Efficient and Reusable Catalyst for the Synthesis of 2, 4, 5- Trisubstituted Imidazoles under Solvent-free Conditions
Khalil Pourshamsian Naser Montazeri Sadegh Asadyan -
Open Access Article
77 - Magnetic Ionic Liquid Functionalized Sulfonic Acid: a Green and Efficient Catalyst for the One-pot Synthesis of 1-Amidoalkyl-2-Naphtols
Maryam Keshtibanian Bijan Mombeni Goodajdar -
Open Access Article
78 - A Simple, Practical and Efficient Method for the Synthesis of New Disubstituted 1,3,4-oxadiazoles
Ali Ramazani Delnia Zamanesazi Yavar Ahmadi Pegah Azimzadeh Asiabi Ali Souldozi Sang Woo Joo -
Open Access Article
79 - Application of 2-methylpyridinum p-toluenesulfonate ([2-MPy][p-TSA]) as an efficient catalyst for the one-pot synthesis of hexahydroquinolines-3-carboxamides
Matin Asadi Masoud Mokhtary -
Open Access Article
80 - H6P2W18O62: A Green and Reusable Catalyst for the One-pot Three-Component Synthesis of Spirooxindoles in Water
Zahra Lasemi Ebrahim Mehrasbi -
Open Access Article
81 - One-pot Three-Component Synthesis of Dihydroquinoxalin-2-amines Containing a Ferrocene unit with the Potential of Biological and Pharmacological Activities
Neda Aghaei Nahid Shajari -
Open Access Article
82 - New Pt(II) Complexes with Heterocyclic Ligands Derived from Benzimidazole: Synthesis, Characterization, DFT Calculations and Catalytic Activities
Parisa Sadeghzadeh Mehdi Pordel Safar Ali Beyramabadi Abolghasem Davoodnia -
Open Access Article
83 - Trichloroacetic Acid as an Efficient Catalyst for One-pot Synthesis of Highly Functionalized Piperidines via multi-component Reaction
Nourallah Hazeri Elham Fereidooni -
Open Access Article
84 - Microwave Assisted Multi-component Synthesis of 4Hchromene Derivatives by Nano-coconut Shell-BF3 as a New Heterogeneous Catalyst
Hamid Reza Molaei Bahareh Sadeghi -
Open Access Article
85 - Coupling of Amines, Dialkyl acetylenedicarboxylaes and Formaldehyde Promoted by Copper (II) Chloride: An Efficient Synthesis of Polysubstituted Dihydro-2-oxopyrrols
Mojtaba Lashkari Reza Heydari Farzaneh Mohamadpour -
Open Access Article
86 - An Efficient Protocol for Synthesis of 2-amino-3cyanopyridine Derivatives using Nano-modified SBA-15
Behrooz Mirza Neda Nasseri -
Open Access Article
87 - SiO2-BaCl2 as a Highly Efficient and Reusable Heterogeneous Catalyst for the One-pot Synthesis of 3,4-dihydropyrimidin-2-(1H)- one/thione Derivatives Under Solvent-free Conditions
Farhad Hatamjafari -
Open Access Article
88 - Water as the Green Media for the Synthesis of Isoquinoline Derivatives
Rokhsar Pahlavan Maedeh Najaf Zinatossadat Hossaini -
Open Access Article
89 - Deep Eutectic Solvent Based on Choline Chloride/Urea as an Efficient Catalytic System for the One-Pot Synthesis of Highly Functionalized 1,4-Dihydropyridines and Polysubstituted 4H-Chromenes
Haleh Nouri Masoud Mokhtary -
Open Access Article
90 - An Efficient Synthesis of Benzylamino Coumarin Derivatives via Three-component Coupling of 4-hydroxycoumarin, Aromatic Aldehyde and Cyclic Secondary Amine Catalyzed by CuO Nanoparticles
Hossein Anaraki-Ardakani Behrooz Mirza Nader Mokhtarian -
Open Access Article
91 - One-Pot Multi-Component Synthesis of Dihydropyrimidinones via Biginelli Condensation
Mohsen Sargordan Arani Behrooz Mirza Mohammad Moghanlou -
Open Access Article
92 - One-pot Synthesis of Polysubstituted Dihydro-2oxypyrroles Catalyzed by Vanadium (V) oxide
Farzaneh Mohamadpour Malek Taher Maghsoodlou Reza Heydari Mojtaba Lashkari -
Open Access Article
93 - Solvent-free Promoted One-pot Synthesis of ٤H-quinolizine, pyrido[٢،١-a]isoquinoline and pyrido[١،٢-a] quinoline Derivatives
Hoorieh Djahaniani Bita Mohtat Maryam Amir Afshari Shokoh Sadat Ghafori -
Open Access Article
94 - The Effect of Investor Sentiment on the Market Reactions to Earnings Restatements
Neda rostami donya ahadiyanInvestors' sentiment often stem from held mental beliefs or information unrelated to stock value and can lead to extreme or low reactions to good or bad news, fanatical expectations such as speculative tendencies and optimistic or pessimistic optimism. Meanwhile, restat MoreInvestors' sentiment often stem from held mental beliefs or information unrelated to stock value and can lead to extreme or low reactions to good or bad news, fanatical expectations such as speculative tendencies and optimistic or pessimistic optimism. Meanwhile, restatement of financial statements may be one of the factors affecting the sentiment of investors. The purpose of the present study is to investigate the effect of investors’ sentiment on the market reactions to earnings restatements. The statistical sample consists of 119 companies listed on the Tehran Stock Exchange in the period 2012 to 2020. The results show that the willingness of investors has a significant effect on the market reaction to the earnings restatement. The results also show that the high investor sentiment, both in the presence of restatement and non-restatement, has a positive effect on market reaction, but in the presence of restatement, the effect of high investor sentiment on market reaction is less. Another result of the research indicates that the low investor sentiment has a negative effect on the market reaction in the presence of a restatement and a positive effect when there is not restatement. Therefore, it can be said that the restatement is effective on the impact of low investor sentiment on the market reaction. Manuscript profile -
Open Access Article
95 - Linear and Nonlinear Response of Stock Market Segments to Gold, Currency and Oil Price Movements
Shahnaz mashayekh tayebeh jamshidiThe purpose of this study is to investigate the linear and nonlinear response of stock market segments to gold, currency and oil price movements. The statistical population of the study is the companies that are listed in the Tehran Stock Exchange. Research data are rev MoreThe purpose of this study is to investigate the linear and nonlinear response of stock market segments to gold, currency and oil price movements. The statistical population of the study is the companies that are listed in the Tehran Stock Exchange. Research data are reviewed during the years 2010 to 2020. The research data is time series and linear and nonlinear regression methods are used to test the research hypothesis. The results show that in the short run, stock prices in intervals 1, 3 and 7 have a positive effect and in intervals 2, 4, 6 and 8 have a negative effect on stock prices in the current period. According to the parent test, overall stock prices are positively affected by their breaks. Also, in the long run, both positive and negative shocks of oil prices have a significant effect on the stock index, the elasticity of the index to world oil prices is about 70%. Unlike oil prices, the exchange rate and gold have a positive effect on stock prices in Iran. According to the results of the estimated coefficients of the nonlinear pattern, the stock price as a whole is positively affected by its intervals Manuscript profile -
Open Access Article
96 - Cu (I)-Catalyzed C-C and C-N Coupling Reactions from a Theoretical Point of View
Fatemeh Zarkoob Alireza AriafardDensity functional theory was used to investigate Cu(I) catalytic mechanism for the formation of C-C and C-N bonds by heteroarenes in the presence of aryl halides and alkyl halides. The mechanism cycle started with deprotonating C-H and N-H bonds on heteroarenes. Our st MoreDensity functional theory was used to investigate Cu(I) catalytic mechanism for the formation of C-C and C-N bonds by heteroarenes in the presence of aryl halides and alkyl halides. The mechanism cycle started with deprotonating C-H and N-H bonds on heteroarenes. Our studies showed that deprotonation occurs through a five-centered transition structure in which the interaction between the nitrogen atoms in the heteroarene with copper caused stability and reduced the energy barrier. Finally, C-C or C-N bonds were formed in the presence of aryl halide or alkyl halide. When an aryl halide was added (C(sp2)–X), the mechanism proceeded through the concerted reaction through oxidative addition of Cu (I). After the transient state, reductive elimination occurred without an energy barrier and led to formation of the product. Our theoretical calculations showed that the mechanism for alkyl halides (C(sp3)-X) differs from aryl halides. The overall mechanism in the presence of alkyl halides is SN2 reaction. However, C-C and C-N bonds are formed by SN2 respectively through oxidative addition of copper and C-N coupling reaction. In both paths, the product was formed without an energy barrier. Manuscript profile -
Open Access Article
97 - Review of the Mechanism of Acetyll amine N-Oxide Catalyzed by Carbon Gold (I) from a DFT Perspective
Fatemeh KHadem lahiji علیرضا آریافردIn this study, we used density functional theory (DFT) to reinvestigate the mechanism proposed by Houk and Zhang et al. (J. Am. Chem. Soc. 2012, 134, 1078) for piperidinone formation through rearrangement of an acetylenic amine N-oxide catalysed by Carbon gold(I) comple MoreIn this study, we used density functional theory (DFT) to reinvestigate the mechanism proposed by Houk and Zhang et al. (J. Am. Chem. Soc. 2012, 134, 1078) for piperidinone formation through rearrangement of an acetylenic amine N-oxide catalysed by Carbon gold(I) complexes. For this rearrangement, the C-C coupling was proposed to be the rate-determining step with activation energy as high as 33 kcal/mol. Such a barrier seems inconsistent with the fact that the actual reaction proceeds under very mild conditions (0 oC, 1 hr, in CH2Cl2). In the original report, it was proposed that the C-C coupling takes place via a mechanism which we called “side-on addition”. Interestingly, we found that the C-C coupling step becomes energetically more favourable if it occurs via another mechanism called “back-side addition”. We explored the effect of different Carbon ligands on all conceivable steps of the catalytic reaction and found that while the other steps are not highly sensitive to the Carbon identity, the C-C coupling one shows a considerable degree of dependency; the more electron-donating the Carbon ligand, the lower the rate-limiting step barrier Manuscript profile -
Open Access Article
98 - Synthesis 3a, 4-dihydronaphtho [2, 3-c] furan-1(3H)-one in the presence of CO2 and NiCo2O4 Nano catalyst
Shima Saberi Rahelej Zhiani Jamshid Mehrzad Alireza MotavalizadehkakhkyIn recent years, significant progress has been made in the use of non-toxic, recyclable, available and affordable CO2 for the production of organic composites. The goal of this research is to synthesize NiCo2O4 nanoparticles and investigate their performance on the thre MoreIn recent years, significant progress has been made in the use of non-toxic, recyclable, available and affordable CO2 for the production of organic composites. The goal of this research is to synthesize NiCo2O4 nanoparticles and investigate their performance on the three-component and efficient reaction of 3a, 4-dihydronaphtho [2, 3-c] furan-1(3H)-one. The structure and morphology of nanoparticles were analyzed by EDX, TEM, SEM, FT-IR and XRD analysis and the effect of various parameters such as solvent, temperature, time, amount of catalyst and substrate on the process of reactions was investigated. The results showed that the reaction of 3a,4-dihydronaphtho[2,3-c]furan-1(3H)-one, at a temperature of 60℃, with 8 mg of NiCo2O4 NPs catalyst and without solvent in the presence of electron-donating alkynes, had 94% efficiency. Catalysts can be recycled; NiCo2O4 Nano catalysts are separated from the solvent by a magnet. After 10 uses, their performance decreased slightly. The nanoparticles used have outstanding properties such as thermal stability, high mechanical properties, good active sites, and a very large contact surface, allowing them to be used in several reactions. Manuscript profile -
Open Access Article
99 - Comparison of reaction time, distraction and fatigue in the drivers involved in accidents and normal drivers
محمد نریمانی سوران رجبی بتول احدی سید سامان حسینیThe aim of this research was to compare the reaction time, distraction and fatigue factor between two groups of drivers with accidental experience and no accident experience. Method of research was ex-post facto and statistical population were all drivers with accidenta MoreThe aim of this research was to compare the reaction time, distraction and fatigue factor between two groups of drivers with accidental experience and no accident experience. Method of research was ex-post facto and statistical population were all drivers with accidental experience who referred to traffic centers and drivers with no accident experience, among them two groups of thirty were selected with the use of simple random sampling. Assessment tools consisted of Reaction Chronoscope (Dunders, 1968), Toulous-Pieron’s Distraction Test (Pieron, 1986), and Fatigue Test (Krupp et al, 1989). Data were analyzed using multivariate analysis of variance (MANOVA). Results showed that average of feet and hand reaction time is significantly higher in the accident-experienced drivers than no accident experience drivers (P < 0.01). Also distraction and fatigue was higher in the accident-experienced drivers than drivers with no accident experience (P < 0.01). Manuscript profile -
Open Access Article
100 - Psychometric Properties of the Hogan Grief Reaction Checklist in Iranian Bereaved Families
marzie sharifi seyed ahmad ahmadi maryamosadat fatehizadeThe aim of this study was to investigate the psychometric properties of Hogan Grief Reaction Checklist (HGRC) among Iranian bereaved families. The statistical population in this study included all bereaved families in Isfahan in 2011(1390S.C.). 280 bereaved people wer MoreThe aim of this study was to investigate the psychometric properties of Hogan Grief Reaction Checklist (HGRC) among Iranian bereaved families. The statistical population in this study included all bereaved families in Isfahan in 2011(1390S.C.). 280 bereaved people were selected via available sampling method. The data were gathered by Hogan Grief Reaction Checklist (Hogan, Greenfield & Schmidt, 2001) , General Health Questionnaire-28 (Goldberg, 1972) and Depression, Anxiety and Stress Scale-21 (Lovibond & Lovibond ,1995) and demographic questionnaire . The exploratory factor analysis with varimax rotation indicated 4 factors (dispair/ distress, personal growth, disorganization/ panic behavior, and anger & blame) in this scale. Internal consistency coefficients by Cronbach's Alpha for the 4 factors were between 0.92 to 0.98 . The criterion validity reveald high and significant correlation between HGRC subscales with General Health Questionnaire and Depression, Anxiety and Stress Scale (P≤0.01). The discriminant validity, indicated that HGRC has the ability to distinguish between normal and pathological griefs. Therefore, the Persian version of HGRC has good reliability and validity for measuring grief reactions in Iranian population. Manuscript profile -
Open Access Article
101 - A Phenomenology Study: Identifying of experiences and psychosomatic and physical reactions in 22-57 years old women victims of infidelity.
maryam tavallaei mohamadhosan fallah Ronak Eshghi Seyed Alireza AfshaniThe purpose of this study was to identify and explain experiences and psychosomatic and physical reactions of women victims of infidelity. This study employed a qualitative approach along with a descriptive phenomenology method. The sample consisted of 20 women between MoreThe purpose of this study was to identify and explain experiences and psychosomatic and physical reactions of women victims of infidelity. This study employed a qualitative approach along with a descriptive phenomenology method. The sample consisted of 20 women between 22-57 years old from Isfahan in 1397 who were selected through purposive or judgmental sampling and were investigated by a semi-structured interview. The data were analyzed using Collaizi method. The data analysis resulted in 2 main themes: psychosomatic reactions and physical reactions; for each of them, more subthemes were found. Psychosomatic reactions including: body fitness problems, nutrition problems, respiratory problems, cordial problems, muscular problems, sleep problems, nervous problems, anxiety reactions, digestive problems, and blood pressure problems; and physical reactions including: physical problems and somatization. The results of this study showed that infidelity was not experienced similarly by all women victims. Different perceptions of infidelity have various effects on victim women and they have different experiences and reactions. Regarding the fact that the findings of the study have been elicited through interview and the cultural context of the society, it may be helpful for the experts to know the victim women experiences and provide useful psychological services to such women. Manuscript profile -
Open Access Article
102 - Relationship between leadership reactions to athletes 'off-field behavior and fans' team identity based on social identity theory and balance
Elham MoshkelgoshaObjective: The present study aim was to investigate the relationship between the leader reactions to the Off-Field Behavior of Athletes with team identity of Sepahan and Zob Ahan fans in 1393.Methodology: This study is a quasi-experimental survey was conducted in two st MoreObjective: The present study aim was to investigate the relationship between the leader reactions to the Off-Field Behavior of Athletes with team identity of Sepahan and Zob Ahan fans in 1393.Methodology: This study is a quasi-experimental survey was conducted in two stages. The sample for all fans of football teams Sepahan and Zob Ahan formed in 1399. Samples are available for sampling and sample size due to the limitations of quasi-experimental study was 82. In the pretest participants and measure their team identity and the identity of the two teams were divided up and down team identity. Then each of these groups were divided into two groups randomly. Two weeks later, participants with either a newspaper story that involves the reaction of strong leadership and weak leadership faced reactions manipulation.Results: The result showed that the team identity among different categories (F= 0.58, P<0.05). Tukey test results showed that the reaction of the fans, who led the team up strong and weak leadership there, but the reaction of the fans, who led the team down the strong and weak make no difference.Conclusion: From the findings of this study, it can be concluded that the decisive attitude of managers to inappropriate behaviors off the field of athletes helps maintain the team identity of fans. Manuscript profile -
Open Access Article
103 - Reaction of some wheat, barley and triticale cultivars to cereal cyst nematode, Heterodera filipjevi , under field conditions in Khuzestan province
Ali Reza Ahmadi Zahra Tanha Maafi Tofigh AbeyatCereal cyst nematodes are one of the most important damaging nematodes of wheat and barley in the world. Heterodera filipjevi is widely distributed on wheat in Iran. In this study, an experiment was conducted with four wheat cultivars (Cvs. Chamran,Virinak,Yavarus and B MoreCereal cyst nematodes are one of the most important damaging nematodes of wheat and barley in the world. Heterodera filipjevi is widely distributed on wheat in Iran. In this study, an experiment was conducted with four wheat cultivars (Cvs. Chamran,Virinak,Yavarus and Behrang), barley (Cv. Zehak) and triticale (Cv. Janilo) in a randomized complete block design with 6 treatments (1 plot not sprayed and 1 plot sprayed with a nematicide as control) and four replications in a nematode infested wheat field in Ramshir region of Khuzestan province during growing season 2008-2009. The results indicated that usage of nematicide reduced grain yield, shoot dry weight, shoot height and tillering by 31-73, 6-47, 1-21 and 11-40 percent respectively as was compared to control. H. filipjevi was multiplied on the all plants in the test, Manuscript profile -
Open Access Article
104 - Multiple solutions of the nonlinear reaction-di usion model with fractional reaction
H. Vosoughi E. Shivanian M. Anbarloei -
Open Access Article
105 - Salience Theory and Pricing Stock of Corporates in Tehran Stock Exchange
Parvaneh Khaleghi Mohammadali Aghaei Farzin Rezaei -
Open Access Article
106 - Behavioral Finance Models and Behavioral Biases in Stock Price Forecasting
Nader Rezaei Zahra Elmi -
Open Access Article
107 - Jump Identification as a Proxy of Information Shocks, In Tehran Stock Exchange.
Hadis Taghaddosi Farimah Mokhatab Rafiei Ali Husseinzadeh KashanUsing jumps in stock prices as a proxy for information shocks to examine investors' reactions to significant events is the most effective method for identifying information shocks. Compared to other studies, this method has advantages listed at the end of the liter MoreUsing jumps in stock prices as a proxy for information shocks to examine investors' reactions to significant events is the most effective method for identifying information shocks. Compared to other studies, this method has advantages listed at the end of the literature review. We provide evidence consistent with short-term overreaction on the Tehran Stock Exchange. Thus, through the contrarian investment strategy, i.e., buying stocks with negative lagged jump returns and selling those with positive lagged jump returns, earn significantly positive returns over the next one- to three-month horizons. This research analyzed the adjusted daily closing prices of the top thirty stocks on the Tehran Stock Exchange in terms of market value and turnover during 2013-2020. Manuscript profile -
Open Access Article
108 - Central Bank Transparency and Capital Market Reaction: A Systematic Review
Mehdi Moazzami Mohsen Rasoulian Mohammad Hossein Vadiei Nowghabi Meysam Arabzadeh Esmail Mazroui NasrabadiIn an expansive test of nations over distinctive geographic districts and over a long period of time, we discover restricted nation and variable-specific impacts of central bank straightforwardness on figure exactness and their scattering among an expansive set of profi MoreIn an expansive test of nations over distinctive geographic districts and over a long period of time, we discover restricted nation and variable-specific impacts of central bank straightforwardness on figure exactness and their scattering among an expansive set of proficient figures of monetary and macroeconomic factors. More communication indeed increments estimate mistakes and scattering. So the aim at this study is a systematic review of central bank transparency and capital market reaction. This study was conducted using a systematic review. At first all papers (n=165) related to keywords (capital market reaction and central bank transparency) searched for Persian and English databases; Google, Google scholar, PubMed covering the period from 2012 through 2022 was performed. Then all qualitative and quantitative papers related to central bank transparency selected and analyzed (n=28). As a result to inclusion and exclusion criteria, papers related to central bank transparency were found and analyzed (n=28). Predefined inclusion and exclusion criteria were: papers related to central bank transparency, papers were Persian and English, types of papers were original and all the papers were free full text. In the initial search, 165 papers were found that after reviewing the titles and abstract articles and removing repetitive and non-related, 54 possible related articles were investigated. Of these, 31 papers were omitted from the abstract because of lack of access to the original article and lack of sufficient information. Finally, 28 papers were included in the study. There are very few studies that have examined the effect of central bank transparency on capital market turmoil. The effect of central bank transpar-ency on the domestic capital market has not been studied. There is no agreement in the literature on theoretical discussions on whether increasing central bank transparency affects capital market turmoil. In foreign research, we can also refer to the study of Dinser and Eichngreen (2007) who have studied this effect empirically using the main transparency index. The pre-sent systematic review shows that almost whole of papers on central bank transparency and capital market reaction highlighted similar findings con-cerning monetary policy decisions. Manuscript profile -
Open Access Article
109 - Detection of Listeria Monocytogenes in non-Pasteurized Milk in Kerman City by Phenotypic and Molecular Techniques
Somayeh Farahbakhsh Ashraf KariminikListeria monocytogenes is a gram-positive bacterium that causes listeriosis in humans and animals and is present in most foods including dairy and milk. Listeria monocytogenes can cause abortion and mastitis in cattle. In humans, as well as infections in pregnant women, MoreListeria monocytogenes is a gram-positive bacterium that causes listeriosis in humans and animals and is present in most foods including dairy and milk. Listeria monocytogenes can cause abortion and mastitis in cattle. In humans, as well as infections in pregnant women, fetuses, and a newborn baby are seen as meningitis septicemia. Despite these microorganisms in milk can be considered as a health indicator. In this study, 50 samples of raw and unpasteurized milk in the city of Kerman were collected and transferred to the laboratory by observing the cold chain. The culture was performed on a Listeria-specific culture medium and phenotypic identification was performed. For molecular identification, the DNA of bacteria identified by the phenotypic method was extracted using a commercial kit. Listeria monocytogenes was detected by using a special IGF kit to identify this bacterium from the Iranian Gene Fanavaran Company. The PCR product was electrophoresed with 1% gel and specific bands were observed. The results showed that 30 and 27 samples of unpasteurized milk showed contamination against Listeria monocytogenes based on the methods performed, culture, and PCR, respectively. This shows the attention and observance of hygienic conditions during the production and preparation of milk and the necessity of using pasteurized milk. Manuscript profile -
Open Access Article
110 - Is skarnization the cause of mineralization? a case study, Sanandaj Sirjan zone, west Iran
Hossein Moinevaziri Hossein Azizi -
Open Access Article
111 - Hydrophobic sulfonated iron oxide: A new magnetically recyclable heterogeneous nanocatalyst for the efficient one-pot four-component synthesis of hexahydroquinolines
Sara Sobhani Taktom Yari Roya JahanshahiAbstract: Abstract A new heterogeneous sulfonated magnetic nanocatalyst decorated with hydrophobic tag denoted as hydrophobic-NBS-γ-Fe2O3, is successfully synthesized and characterized by different methods such as FT-IR, SEM, TEM, TGA and elemental analysis. The c MoreAbstract: Abstract A new heterogeneous sulfonated magnetic nanocatalyst decorated with hydrophobic tag denoted as hydrophobic-NBS-γ-Fe2O3, is successfully synthesized and characterized by different methods such as FT-IR, SEM, TEM, TGA and elemental analysis. The catalyst worked well for the efficient synthesis of hexahydroquinolines (HHQs) via the Hantzsch one-pot four-component reactions under solvent-free conditions. The enhanced catalytic activity of hydrophobic-NBS-γ-Fe2O3 could be attributed to the synergistic effects of the anchored sulfonic acid groups and hydrophobic tags on the catalyst surface. The presence of hydrophobic tags well circumvents the problem of water-poisoning of acidic sites in the synthesis of HHQs as a water generating reaction and also facilitates the mass transfer of hydrophobic starting materials to the active acidic sites of the catalyst. Using the solvent-free conditions, good to high yields of the products, use of reusable catalyst, short reaction times and simple work-up procedure make this method favorable from the environmental and economic viewpoints for the synthesis of HHQs. This study represents the first example of using a hydrophobic sulfonated magnetic nanocatalyst towards the one-pot four-component synthesis of HHQs. Manuscript profile -
Open Access Article
112 - A review on the application of multi-component reactions in the synthesis of pharmaceutical heterocyclics
Samira Arab-SalmanabadiMost of the chemical drugs that have been used recently have been designed, identified, and manufactured by organic-pharmacological chemists through various chemical reactions. Multicomponent reactions (MCRs) as an evolving process have played an effective role in the s MoreMost of the chemical drugs that have been used recently have been designed, identified, and manufactured by organic-pharmacological chemists through various chemical reactions. Multicomponent reactions (MCRs) as an evolving process have played an effective role in the synthesis of various drug compounds and the production of various molecules and heterocycles. The chances of producing new drugs increase through different methods of synthesis and study of the biological properties of synthetic derivatives. In recent years, the synthesis of new drugs and the study of various variables to optimize the production process of various chemical compounds with diverse functional groups, which can be the source of various biological activities, has been a very significant topic in the field of organic-medicinal chemistry. So far, extensive research has been conducted on the synthesis of new heterocycles with the aim of drug studies. In this review article, an attempt has been made to compile and present a set of researches in the field of design and synthesis of heterocycles with medicinal properties, focusing on the use of multi-component reactions. Manuscript profile -
Open Access Article
113 - Explanation of Behavioral Reactions and Comparisons Girl Students with Love Truma Syndrome: A Phenomenological Study
Fahimeh Bahonar Mohammadhasan Asayesh Nikoo GhazinezhadThe purpose of this study was to explain the behavioral reactions and comparisons girl students with love-truma symptoms. In order to understand the life experiences of girls with the experiences of love truma syndromes, a phenomenological study approach was adopted. Th MoreThe purpose of this study was to explain the behavioral reactions and comparisons girl students with love-truma symptoms. In order to understand the life experiences of girls with the experiences of love truma syndromes, a phenomenological study approach was adopted. The present study community was comprised of all girles college students at the University of Tehran who experienced a love failure in the past year. In order to sample the girls living in a student's dormitory at Tehran University during a recall, they were selected through purposive sampling. Finally, 14 people were selected and semi-structured interviews were used for collecting information. Data analysis was done through the colaizzi methodology. Data analysis resulted in the production of 2 main themes, 17 sub-themes and 41 initial concepts. The main theme of the first was"behavioral reactions and adaptive comparisons". that sub-themes 1-move to others 2-compliance with conditions, 3-request professional help, 4- precaution in behavior, 5-self-management, 6-employment and activity, -self-management, 6-employment and activity, 7-Includes a skillfulness and 8-adaptive spiritual reactions. The second main theme was"behavioral reactions and maladaptive comarison" that included sub-themes 1-comparison, 2-blaming, 3-not referring to a specialist, 4-role play, 5-memorizing memories, 6-rejection, 7-self-injury and 8- It was a waking job, 9-was spiritual scum. The results showed a variety of responses in the participants, and the type of environmental and psychological support, individual insight and personality type were effective in the quality of the reactions of the participants. Other results are discussed. Manuscript profile -
Open Access Article
114 - One-pot synthesis of 1,2,4,5-tetrasubstituted Imidazoles using BiFeO3
Roya Nazarpour Behnam Amiri -
Open Access Article
115 - Tributyl hexadecyl phosphonium bromide as a new and efficient catalyst for the one-pot synthesis of 3,4-dihydropyrimidinones/thiones via a three component condensation reactions
Rashid Badri Leila Mohammadi Ali Reza kiasat -
Open Access Article
116 - Synthesis 3 and 4-Dihydropyrimidinone and Thiones using Multi-Walled Carboxylated Carbon Nanotube Catalysts
maryam moghaddas -
Open Access Article
117 - Synthesis of Nano-Maghemite supported coconut chaff catalyst for Mannich reaction
Marion Sossamon Shannyn Cotilard -
Open Access Article
118 - Synthesis and Physicochemical Characterization of New Amidic Derivative of Sodium Alginate
Shokouh Khodayar Mohammad Reza Shushizadeh Elham Tahanpesar Behzad Sharif Makhmalzadeh Haleh Sanaeishoar -
Open Access Article
119 - Cu(II) complex based on 3-hydroxy-2-naphtoic acid (Cu-HNA) as an efficient catalyst for the one-pot multicomponent synthesis of triazolo[1,2-a]indazole-triones under solvent free conditions
Ali Javid -
Open Access Article
120 - Tandem Synthesis and Optical Rotatory Dispersion Studies of a Novel Spiro Lactone (methyl 3-(benzo[d]thiazol-2-ylamino)-7,9-dimethyl-2,6,8,10-tetraoxo-1-oxa-7,9-diazaspiro[4.5]dec-3-ene-4-carboxylate)
Karim Ghafouri Samira Arab-salmanabadi Sajjad Sedaghat -
Open Access Article
121 - SOLVENT-FREE SYNTHESIS OF PYRROL DERIVATIVES USING MULTICOMPONENT REACTIONS OF 1,3-DICARBONYLS, ACTIVATED CARBONYL COMPOUNDS, AND PRIMARY ALKYLAMINES
Faramarz Rostami-Charati Mehdi Shahraki Mohammad R Hosseini- Tabatabaei Zinatossadat Hossaini -
Open Access Article
122 - P2O5/Al2O3 as an effieientcatalystfor one-potsynthesis of polyhydroquinoline derivativesundersolvent-free conditions
Tayebeh Sanaeishoar Sara Roueen -
Open Access Article
123 - One-pot synthesis of triazolo[1,2-a]indazole-triones catalyzed by a novel magnetically and reusable green catalyst of Preyssler
Maryam Akbari Ali Javid Farid Moeinpour -
Open Access Article
124 - Synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free conditions via Phosphorus pentoxide supported on alumina (P2O5/Al2O3) catalyzed tandem reaction of Aldehyde with dimedone
Tayebeh Sanaeishoar Negar Hormozinezhad -
Open Access Article
125 - A Novel protocol for synthesis of Hantzsch 1, 4- dihydropyridines using PEG-400 as a reaction medium and under catalyst-free condition
Ali Ezabadi Fatemeh Tosan -
Open Access Article
126 - Catalytic effect of green zinc oxide nanoparticles on multi –component reactions
Zohreh Dehghanizadeh Foad Buazar -
Open Access Article
127 - P2O5/Al2O3 as an effieient catalyst for one-pot synthesis of polyhydroquinoline derivatives under solvent-free conditions
Tayebeh Sanaeishoar Sara Roueen -
Open Access Article
128 - Fe-Co-V/Zeolite nano composite catalyzed biginelli compounds synthesis and evaluation of their drug cytotoxic activity
shima Zanganeh Yousef Abadi Mohammad Kazem Mohammadi Haman Tavakkoli -
Open Access Article
129 - Novel procedure for preparation of Hantzsch 1, 4- dihydropyridines using PEG-400 as a reaction medium and under catalyst-free condition
Ali Ezabadi Fatemeh Tosan -
Open Access Article
130 - Selective and facile Synthesis of 2-Aminothiophenes Using Na2CaP2O7 as base Nano-Catalyst
Iman Khosravi Elham Rastegar Melika Eftekhar Farid Moeinpour -
Open Access Article
131 - Calcium Chloride catalyzed Intramolecular Oxa Michael addition of 2’-Hydroxychalcone to Flavanone
Pramod Kulkarni -
Open Access Article
132 - Condensationtion of 3-hydroxy pyridine alkyl isocyanides and dialkyl acetylenedicarboxylate: synthesis of 4H-chromenes
Mahsa Mahpeyma Bita Mohtat -
Open Access Article
133 - Persian Gulf Marine Sponge/I2: An efficient natural catalyst for quinoline synthesis
Fereshteh farrokhi nejad Mohammad Reza Shushizadeh -
Open Access Article
134 - Biginelli Synthesis and Theoritical Study of Dihydropyrimidinone Compounds
Mohammad Hosein Farjam Ramin Rezaei -
Open Access Article
135 - Zno nanoparticles/silica for biginelli solution syntheis
Ali Javid Sabbaghian Parya Nasehi -
Open Access Article
136 - TiO2 nanoparticles/melamine Tri sulfonic acid for biginelli syntheis under solvent-free conditions
Mohammad Kazem Mohammadi -
Open Access Article
137 - TiO2 nanoparticles/melamine Tri sulfonic acid for biginelli syntheis under solvent-free conditions
Mohammad Kazem Mohammadi -
Open Access Article
138 - preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water
Soheil Sayyahi Sedigheh Jahanbakhshi Zahra Dehghani -
Open Access Article
139 - D-tartaric acid: a novel catalyst for green and efficient synthesis of 3,4-dihydropyrimidin-2(1H)-ones by Biginelli reaction under solvent-free conditions
Ali Ezabadi Neda Ghassemi -
Open Access Article
140 - TiO2 nanoparticles/melamine Tri sulfonic acid for biginelli syntheis under solvent-free conditions
forough cheldavi -
Open Access Article
141 - Reaction between 3-hydroxy pyridine alkyl isocyanides and dialkyl acetylenedicarboxylate: synthesis of 4H-chromenes
Mahsa Mahpeyma Bita Mohtat -
Open Access Article
142 - Reaction between 3-hydroxy pyridine alkyl isocyanides and dialkyl acetylenedicarboxylate: synthesis of 4H-chromenes
Mahsa Mahpeyma Bita Mohtat -
Open Access Article
143 - Synthesis of new phenanthro imidazole derivatives in solvent free condition
Masih Golkari -
Open Access Article
144 - A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water
Soheil Sayyahi Sedigheh Jahanbakhshi Zahra Dehghani -
Open Access Article
145 - Biginelli Synthesis and Theoritical Study of Dihydropyrimidinones
Mohammad Hosein Farjam Ramin Rezaei -
Open Access Article
146 - A green and efficient method for the preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water
Soheil Sayyahi Sedigheh Jahanbakhshi Zahra Dehghani -
Open Access Article
147 - SOLVENT-FREE SYNTHESIS OF PYRROL DERIVATIVES USING MULTICOMPONENT REACTIONS OF 1,3-DICARBONYLS, ACTIVATED CARBONYL COMPOUNDS, AND PRIMARY ALKYLAMINES
Faramarz Rostami-Charati Mehdi Shahraki Mohammad R. Hosseini- Tabatabaei Zinatossadat Hossaini -
Open Access Article
148 - Solvent-free One Pot Biginelli Method for Synthesis of new Dihydropyrimidinone compounds
Masih Golkari -
Open Access Article
149 - Reaction of benzoylpyruvate with a mixture of aromatic aldehydes and 5-amino-1,3,4-thiadizole-2-thiol
Neda Tavakkoli Hassan Kabirifard -
Open Access Article
150 - Study of structural and optical properties of anthocyanin- modified TiO2 for the purpose of photodegradation
Marzieh Ataie Dila Azadeh Haghighat zadeh -
Open Access Article
151 - Modern Advances in Click Reactions and applications
Shedrach Yakubu Emmanuel Etim -
Open Access Article
152 - One pot Solvent free Synthesis of Biginelli Type Derivatives using Ag2O/GO/TiO2 Composite Nanostructure and evaluation of biological activity
Fatemeh Samandizadeh Mohammad Mohammadi Ayeh Rayatzadeh Neda Hasanzadeh -
Open Access Article
153 - ارزیابی فنی کاربرد سیستم زهکشی زیرزمینی با پوشش مصنوعی pp450 در مقایسه با پوشش شن و ماسه (مطالعه موردی کشت و صنعت سلمان فارسی)
پرنیان مجیدی چهارمحالی عبد علی ناصری عبدالرحیم هوشمند منا گلابیاین تحقیق با هدف بررسی عملکرد سیستم زهکشی زیرزمینی کم عمق بر نوسانات سطح ایستابی و بررسی پارامترهای طراحی سیستم زهکش­های زیرزمینی با به کارگیری دو نمونه از پوشش زهکش­های زیرزمینی شامل پوشش شن و ماسه و پوشش مصنوعی انجام شد. دو مزرعه (یکی دارای پوشش معدنی و Moreاین تحقیق با هدف بررسی عملکرد سیستم زهکشی زیرزمینی کم عمق بر نوسانات سطح ایستابی و بررسی پارامترهای طراحی سیستم زهکش­های زیرزمینی با به کارگیری دو نمونه از پوشش زهکش­های زیرزمینی شامل پوشش شن و ماسه و پوشش مصنوعی انجام شد. دو مزرعه (یکی دارای پوشش معدنی و دیگری مصنوعی)که هر کدام دارای 6 لترال بودند؛ انتخاب شدند. چاهک­های مشاهداتی جهت اندازه­گیری هدایت هیدرولیکی، نوسانات سطح ایستابی و به منظور تعیین شاخص­های عملکرد زهکش­های زیرزمینی مطابق استانداردهای موجود، و بر روی لترال وسط، در بین دو خط زهکش در فواصل 25/0، 50/0، 75/0 از طول لترال نصب شدند. با استفاده از پارامتر­های اندازه­گیری شده، عملکرد سیستم زهکشی و پارامترهای طراحی مورد ارزیابی قرار گرفت. پس از انجام آزمایشات، نتایج نشان داد که پارامترهای طراحی شده در روش جریان ماندگار برای هر دو مزرعه خوب بوده است. و نتایج حاصل از دو پوشش مشابه هم بوده است اما فقط در روش جریان غیر ماندگار، ضریب آبدهی ویژه به دست آمده از معادله­ها، با هم تفاوت زیادی داشتند. با استفاده از پارامتر­های اندازه گیری شده، پارامترهای طراحی مورد ارزیابی قرار گرفت. و طبق نتایج به دست آمده هر دو پوشش عملکرد مطلوب و مشابه به هم از خود نشان داده­اند. Manuscript profile -
Open Access Article
154 - Personality traits as the predictors of the type of reaction to interpersonal transgressions
Ali pakizeh sadegh hekmatiyan fardThe present study was conducted in order to investigate the predictive power of personality traits for reactions to interpersonal transgressions in university students. The statistical population of the current study, which was conducted in a correlational design, inclu MoreThe present study was conducted in order to investigate the predictive power of personality traits for reactions to interpersonal transgressions in university students. The statistical population of the current study, which was conducted in a correlational design, included all students studying at the Persian Gulf University in the academic year of 1402-1401. The sample members include 224 students (96 male and 128 female) who were selected using the multi-stage cluster sampling method. The scales used in this research included Five-factor Personality Questionnaire (McCrae and Costa) and The Transgression-Related Interpersonal Motivations Inventory—18-Item Version (TRIM–18). Data were analyzed using stepwise regression analysis. The findings showed that the two traits of agreeableness (β=0.26, P<0.01), and openness to experience (β=0.21, P<0.01) are direct predictors of the forgiveness reaction. Revenge reaction was directly predicted by trait neuroticism (β=0.44, P<0.01), but reversely predicted by agreeableness (β=0.44, P<0.01), and openness to experience (β=0.23, P<0.01). Avoidance reaction was also inversely predicted by agreeableness (β=0.43, P<0.01) and openness to experience (β=0.25, P<0.01), but it was directly predicted by the trait of neuroticism (β=0.19, P<0.01). Considering the role of personality traits in predicting the type of reactions in interpersonal conflicts, focusing on and strengthening the personality traits that facilitate interpersonal relationships can be an effective prevention factor for interpersonal transgressions. The present study was conducted in order to investigate the predictive power of personality traits for reactions to interpersonal transgressions in university students. The statistical population of the current study, which was conducted in a correlational design, included all students studying at the Persian Gulf University in the academic year of 1402-1401. The sample members include 224 students (96 male and 128 female) who were selected using the multi-stage cluster sampling method. The scales used in this research included Five-factor Personality Questionnaire (McCrae and Costa) and The Transgression-Related Interpersonal Motivations Inventory—18-Item Version (TRIM–18). Data were analyzed using stepwise regression analysis. The findings showed that the two traits of agreeableness (β=0.26, P<0.01), and openness to experience (β=0.21, P<0.01) are direct predictors of the forgiveness reaction. Revenge reaction was directly predicted by trait neuroticism (β=0.44, P<0.01), but reversely predicted by agreeableness (β=0.44, P<0.01), and openness to experience (β=0.23, P<0.01). Avoidance reaction was also inversely predicted by agreeableness (β=0.43, P<0.01) and openness to experience (β=0.25, P<0.01), but it was directly predicted by the trait of neuroticism (β=0.19, P<0.01). Considering the role of personality traits in predicting the type of reactions in interpersonal conflicts, focusing on and strengthening the personality traits that facilitate interpersonal relationships can be an effective prevention factor for interpersonal transgressions. Manuscript profile -
Open Access Article
155 - Catalytic Synthesis N-alkyl-3-acetyl-2-methylpyrroles using ZnO Nanostructure
A.S. Shahvelayati M. Sabbaghan S. Banihashem -
Open Access Article
156 - Design of pillars size in under ground mines by ground reaction curve method
Kamran Goshtasbi Shobeir ArshadnejadMining methods are mainly depending on physical and geometrical structure of ore bodies. Room &pillar mining is very important in underground mining methods. Because of it is simplicity, highproduction and low cost of operations. Room & pillar method includes so MoreMining methods are mainly depending on physical and geometrical structure of ore bodies. Room &pillar mining is very important in underground mining methods. Because of it is simplicity, highproduction and low cost of operations. Room & pillar method includes some intersecting tunnels in orebody, for stability of these tunnels, some parts of ore body must remain in the form of columns or socalled pillar. Designing of the pillars is very important for increasing of the performance anddecreasing of ore loss. Hence many empirical formulae are presented for designing of the pillars, butbased on limited data. In fact, the particular restriction of each formula limits its application in variousconditions and ore bodies. In this paper a new method is suggested for determination of optimumpillars design in various conditions by numerical modeling and ground reaction curve. By this methodall of rock mass geomechanical and geometrical characteristics can be considered for designing of thepillars. This new method is based on ground reaction curve by making 18 models in 30, 40 and 50meters depth with different width to height ratio (W/h) of the pillar. Each of the resulted curves inlinear part which states the elastic behavior of rock mass determines the desirable width to height ratio(W/h). An Underground salt rock mine (Soltan abad’s mine) was selected for validating of thesuggested method. The W/h for stable pillars in the mine is between 1.3 and 1.6. The result obtained ofground reaction curves is 1.375 for W/h which showing the accuracy of suggested method. Manuscript profile -
Open Access Article
157 - Reaction Time in Phoneme Recognition: A Comparative Study among Iranian Upper-Intermediate vs. Advanced EFL Learners at Institute Level
Mozhgan Fallah Ramin Rahimy -
Open Access Article
158 - Numerical Investigation of Subgrade Reaction Coefficient in Sand Soils of Bandar Abbas City
Adel Asakereh Masood Mossafa -
Open Access Article
159 - The Philosophy of the Exercise of Restrictive Punishments under the Criteria of Discretionary Punishment
Mohammad Hadi Sadeghi Javad RiahiAccording to the sources of Islamic jurisprudence, expediency of judge in the selection of discretionary punishment means that the judge should choose the best reaction by considering the criteria related to three elements of crime, victim and criminal. Therefore, the e MoreAccording to the sources of Islamic jurisprudence, expediency of judge in the selection of discretionary punishment means that the judge should choose the best reaction by considering the criteria related to three elements of crime, victim and criminal. Therefore, the examination of these elements demonstrates the reactions that may be chosen. The present study, using a descriptive–analytical method, has examined criteria related to those elements and has found out that the consideration of the criteria and norms of discretionary punishment, sometimes, necessitate the exercise of the restrictive punishment as the most advisable and the most effective reaction. Therefore, judges should determine restrictive punishment in appropriate cases and legislator and judicial directors should guide and conduct judges to exercise the restrictive punishments in those situations. Manuscript profile -
Open Access Article
160 - Glycation of nisin with glucose, Lactose and dextran and investigation of its inhibitory effect on Escherichia coli and Salmonella Typhimurium
M. Hashempour Sadeghian N. Kazemipour S. Shekarforoush M. H. EskandariNisin is an antimicrobial peptide used in the food industry as a preservative. However, this peptide has no considerable effect on gram-negative bacteria. In this study, the effect of glycation on the antimicrobial activity of nisin was elucidated against Escherichia co MoreNisin is an antimicrobial peptide used in the food industry as a preservative. However, this peptide has no considerable effect on gram-negative bacteria. In this study, the effect of glycation on the antimicrobial activity of nisin was elucidated against Escherichia coli and Salmonella Typhimurium. A solution of nisin and fivefold concentration of glucose, lactose and dextran and solution of nisin without any sugar were prepared in phosphate buffer and were lyophilized. The lyophilized powder was exposed to 60°C temperature and 70% humidity for 7 days. Every 24 hours, one sample was collected and dissolved in distilled. The equal molar concentration of native and conjugated nisin was made. Percentage of glycation was measured by OPA (ortho-phthalaldehyde) method. MIC50 of nisin was assayed by microdilution method against E. coli and S. Ttyphimurium. The result of this study has revealed that the percentage of glycation is conversely related to the size of carbohydrates in which nisin-glucose had the highest and nisin-dextran had the least percentage of glycation. Glycation of nisin increased the MIC50 of nisin against E. coli after seven days. MIC50 of native nisin and glycated nisin had no difference against S. Typhimurium. From this study, it was concluded that conjugation of nisin with carbohydrates is not able to extend the antimicrobial activity of nisin to gram-negative bacteria. Manuscript profile -
Open Access Article
161 - Investigating the prevalence, genetic diversity and antibiotic resistance of Clostridium difficile in local and industrial chicken and turkey meat in sales centers of Chahar Mahal and Bakhtiari province.
akbar ansariyan barezi Amir Shakerian ebrahim rahimi zahra esfandiyariClostridium difficile is an obligate anaerobic, spore-forming bacterium with a length of 3-5 micrometers and most important enteropathogens in humans and livestock. Antibiotic use has been introduced as one of the most important risk factors in the spread of this diseas MoreClostridium difficile is an obligate anaerobic, spore-forming bacterium with a length of 3-5 micrometers and most important enteropathogens in humans and livestock. Antibiotic use has been introduced as one of the most important risk factors in the spread of this disease. Antibiotics such as amoxicillin, erythromycin, lincomycin, clindamycin, linozoid, metopenem, metronidazole, amoxifloxacin, penicillin, pyracillin, tetracycline, and vancomycin have been introduced as common cases of "nosocomial Clostridium difficile infection". The purpose of this study is to investigate the prevalence, antibiotic resistance and genetic diversity of Clostridium difficile bacteria as a possible new foodborne pathogen in 300 domestic and industrial chicken and turkey meat samples in Chaharmahal and Bakhtiari provinces. The samples were grown in CDMN agar culture medium after an enrichment step to isolate Clostridium difficile. To determine the characteristics of the toxin, tcdA and tcdB genes were identified through multiplex PCR. The antibiotic sensitivity of these isolates was monitored based on the MIC test. The results showed that the highest prevalence was related to native chicken meat (5.6%) and the lowest prevalence was related to industrial turkey meat (1%). The genes responsible for the production of tcdB and tcdA toxins were observed in all Clostridium difficile isolates. Also, the highest resistance was related to erythromycin (14.85%) and the lowest resistance was related to vancomycin (97.38%). According to the isolation of two main genes causing hospital infection in clinical environments in the present study, the establishment of health systems in relation to the storage of the studied meats is necessary.. Manuscript profile -
Open Access Article
162 - A comparative study for diagnosis of Bovine Leukemia Virus (BLV) infection in dairy cows by Polymerase Chain Reaction (PCR) and Enzyme Linked Immunosorbent assay (ELISA)
raziallah jafari jozani gholamali moghaddam mohsen asmandBovine Leukemia Virus (BLV) is a retrovirus that causes bovine enzootic leukemia (EBL). The routine method for the diagnosis of the infection is antibody screening tests. Agar gel immunodiffusion (AGID) and ELISA are widely used for detection of the antibody against BLV MoreBovine Leukemia Virus (BLV) is a retrovirus that causes bovine enzootic leukemia (EBL). The routine method for the diagnosis of the infection is antibody screening tests. Agar gel immunodiffusion (AGID) and ELISA are widely used for detection of the antibody against BLV. Amplification and detection of the proviral DNA by PCR is a powerful method for direct detection of the infection. However there are some limitations for routine use of this method in laboratory diagnosis of the disease and it requires further investigations. The objective of this study was to compare the results of a PCR assay with a commercial ELISA in detection of the bovine leukemia provirus and antibodies to this agent, in blood samples of dairy cows. The ELISA was assumed as reference test and the relative sensitivity and specificity of the PCR assay was calculated by testing samples from 173 cows in suburb of Tabriz. Blood sample were taken and taken sera and DNA contents were harvested. Sensitivity and specificity of the PCR assay in caparison to commercial ELISA were 100% and 98.6% respectively. The frequency of the presence of the targeted part of gag gene in PCR was 13.3% and the frequency of the seropositive reaction by commercial ELISA was 12.1%. The results showed that it is possible to use PCR as a laboratory diagnostic method for identification of the disease. Manuscript profile -
Open Access Article
163 - PCR assays for detection of Toxoplasma gondii infection in Iranian camels (Camelus dromedarius) of Yazd province
alireza sazmand mousa tavassoli bijan Esameilnejad zahra Asadollahi ali Kazemnia seyyedhossein Hekmatimoghaddam The protozoan parasite Toxoplasma gondii is one the most important zoonotic pathogens. Therefore, in the current pilot study a total of 50 Iranian one-humped camels of both sexes and different ages that were kept by local farmers in Yazd province of Iran we More The protozoan parasite Toxoplasma gondii is one the most important zoonotic pathogens. Therefore, in the current pilot study a total of 50 Iranian one-humped camels of both sexes and different ages that were kept by local farmers in Yazd province of Iran were tested for Toxoplasma gondii infection. Whole blood samples were investigated by PCR assay using B1 gene. The results revealed that none of the tested camels were infected with Toxoplasma gondii. The current pilot study is the first attempt for detection of Toxoplasma gondii in camels in Iran by PCR method. Further studies in different regions of the country seem necessary to outline the importance of the disease. Also, experimental infection of camels with Toxoplasma gondii is recommended to study the course of the disease. Manuscript profile -
Open Access Article
164 - Application of genomic densitometry for calculating the relative population of Escherichia Coli in the intestine of broiler chicks
A.R Seidavi In this study, the densitometry technique for calculating of the relative population of Escherichia coli in various segments of the intestine of broiler chicks was evaluated. Following preparation of the intestinal contents, the process of extraction More In this study, the densitometry technique for calculating of the relative population of Escherichia coli in various segments of the intestine of broiler chicks was evaluated. Following preparation of the intestinal contents, the process of extraction and purification of DNA from the contents of duodenum, jejunum, ileum and cecum was undertaken. A specific polymerase chain reaction (PCR) using two pairs of primers was employed to detect Escherichia coli and total bacteria present in the gastrointestinal tract of the chicks. Specific bands of E.coli were obtained using densitometry and Gel Proc Analyzer software based on linear regression with extrapolation. E.coli populations at different ages were also determined in various segments of the gastrointestinal tract of the chicks. The Results of this experiment indicated that 0.000004%, 0.07%, 0.64% and 2.51% of total bacteria present in the duodenum, jejunum, ileum and cecum respectively consisted of E.coli. Also, E.coli constitutes 1.76, 0.01 and 0.80% of the total intestinal bacteria of chicks at 4, 14 and 30 days of age respectively. Furthermore, it was shown that at 4 days of age, 0.30, 2.05 and 3.97% of the total bacteria present in the jejunum, ileum and cecum respectively were from E.coli species and this bacteria was absent in the duodenum. At 14 days of age these figures were 0.000009%, 0.00011% and 0.08% respectively while at 30 days of age 0.00011%, 0.009% and 2.40% of all bacteria in the duodenum, ileum and cecum were E.coli species and this bacteria was absent in the jejunum. In conclusion, the densitometry method based on PCR results can be regarded as a useful tool for densitometry the relative population E.coli in the gastrointestinal tract of poultry. Manuscript profile -
Open Access Article
165 - Detection of Theileriaovis in vector ticks by Polymerase Chain Reaction method (PCR) in Lorestan province
naser hoghoughirad saeed hashemi mohammad abdigoudarzi Theileriosis is caused by an intracellular protozoan that causes great economical losses to animal husbandry in different regions of Iran . The present study was done in order to identify of Theileriaovis in hard ticks in Lorestanprovince More Theileriosis is caused by an intracellular protozoan that causes great economical losses to animal husbandry in different regions of Iran . The present study was done in order to identify of Theileriaovis in hard ticks in Lorestanprovince . Amongst five different regions in Lorestan, and during the April-to-july period of the year 2012, 265 cases of hard ticks were collected from the ear and the body surface and 100 blood smears from ear veins of anemic and feverish sheep. DNA extraction was done from the salivary glands of collected ticks and PCR test was performed using a pair of 520 bp specific primer of SSurRNA gene of T. ovis . The microscopic examinations of blood smears showed that 12 samples of blood smears ( 12 %) contained the piroplasmic forms of Theileriaspcies. The PCR revealed that 37 out of 152 Rhipicephalussanguineus (24/34 % ) were positive for T. ovisgenum including 21 female (13/81%) and 16 male (10/52%) ticks while the other ticks were not infected by this parasite. Out of total of 265 tick samples, R.sanguineus was highest (38.35%) and Haemaphysalispunctatahad the lowest (3/01%) frequencies. Regarding the vast distribution of R.sanguineus in the area, it seems that this tick may be the main vector of T.ovis in Lorestan province, Iran. Manuscript profile -
Open Access Article
166 - A brief overview on the application of cellulose as an efficient and effective catalyst in organic reactions
Abdulhamid Dehghani Milad Ghezelsofloo Yousef Delshad Soheil Dehghani SiyahakiThe production of renewable and valuable chemicals from renewable biomass sources such as cellulose has attracted global attention in order to create sustainable societies. Cellulose is the most abundant non-food biomass and is of great economic importance. Unlike tradi MoreThe production of renewable and valuable chemicals from renewable biomass sources such as cellulose has attracted global attention in order to create sustainable societies. Cellulose is the most abundant non-food biomass and is of great economic importance. Unlike traditional catalysts derived from petroleum sources, cellulose offers several advantages such as renewability, biodegradability and compatibility with the principles of green chemistry. The use of heterogeneous catalysis can allow researchers to develop environmentally safe processes. Cellulose-based catalysts have shown significant activity in a wide range of reactions including hydrogenation, oxidation and polymerization. Their versatility is due to their ability to support all kinds of metal nanoparticles that act as active catalysis sites. Stabilization of metal nanoparticles on cellulose brings several advantages, including improving stability, preventing the accumulation of nanoparticles, and increasing their dispersibility. Cellulose shows its potential to create a great revolution in green chemistry. Therefore, cellulose's versatility, sustainability, and tunable properties make it an essential catalyst for a greener future. The purpose of this review is to provide an overview of the use of cellulose as a catalyst in organic reactions by Iranian researchers. Manuscript profile -
Open Access Article
167 - The Effect of the Mg Content on Mechanosynthesis of ZrB2–SiC–ZrC Composite in the Mg/ZrSiO4/B2O3/C System
Omid Torabi Sanaz Naghibi Mohammad Hossein Golabgir Hamid Tajizadegan Amin Jamshidi -
Open Access Article
168 - The effects of different molten salt composition on morphology and purity of ZrB2 powder obtained via direct molten salt reaction method
mohammad velashjerdi Hossien sarpoolaky Alireza Mirhabibi -
Open Access Article
169 - Synthesis of zinc aluminate (ZnAl2O4) by mechanochemical processing with different molar ratios of ZnS:Al
Niloofar Ghani Kolahloo Nader SETOUDEH Abbas Mohassel Raziye Hayati Mohammad Sajjadnejad -
Open Access Article
170 - Palladium-Cobalt on Reduced Graphene Oxide as an Electro-catalyst for Ethylene Glycol Oxidation in Alkaline Medium: Synthesis and Electrochemical Performance
Hamid Asgari Somayeh Majidi -
Open Access Article
171 - The Morphology of Zinc Sulfide Nanocrystals Synthesized by Different Methods
Mina Adibi Sohrab Taghipoor Rava Parhizkar Seyed Mojtaba Mostafavi -
Open Access Article
172 - High Catalytic Ability of Fe3O4/EDTA Magnetic Nanocatalyst in Comparison with Various Deep Eutectic Solvents for One-Pot Synthesis of 4H-Pyrans
hossein tavakol Dana Shahabi -
Open Access Article
173 - Optimization of reaction conditions and effect of catalyst type on product distribution in Cyclooctene oxidation
Yahya Zamani Mehdi Bakavoli Ali Mohajeri Seyed Mohammad Seyedi -
Open Access Article
174 - Fabrication of Soft Magnetic Fe-based Nanoalloy
Qi Wong Yong Li -
Open Access Article
175 - High Catalytic Ability of Fe3O4/EDTA Magnetic Nanocatalyst in Comparison with Various Deep Eutectic Solvents for One-Pot Synthesis of 4H-Pyrans
Dana Shahabi hossein tavakol -
Open Access Article
176 - The Morphology of Zinc Sulfide Nanocrystals Synthesized by Different Methods
Mina Adibi Sohrab Taghipoor Rava Parhizkar Seyed Mojtaba Mostafavi -
Open Access Article
177 - Manifesting the Reprimanding Response Behavior of Native Persian Speakers and EFL Learners Using Rapport Management Approach
Fazlolah Samimi Jalal Khoramrooz -
Open Access Article
178 - The Effect of 24-Hour Sleep Deprivation on Reaction time, Working Memory, and Attention in College Students
Iman Ghanbari moslem sharifyAbstract:Sleep is one of the basic human needs that is regulated by homeostatic and circadian processes. The aim of this research is the effect of 24 hours of sleep deprivation on reaction time, working memory and attention in college students. The statistical populatio MoreAbstract:Sleep is one of the basic human needs that is regulated by homeostatic and circadian processes. The aim of this research is the effect of 24 hours of sleep deprivation on reaction time, working memory and attention in college students. The statistical population of the research is all male students of Islamic Azad University, Babol branch. 180 male students who were between 19 and 25 years old volunteered (available sampling) to cooperate with the present research; Among them, 64 people were selected as a statistical sample after initial screenings. The subjects were randomly divided into two control (n=32) and experimental (n=32) groups. The experimental group experienced 24 hours of sleep deprivation. Then from both groups simple and selective reaction time tests, working memory (N-back=1,2) and attention. In order to analyze the data, analysis of covariance and one-way ANCOVA statistical method were used. The results showed that 24 hours of sleep deprivation had no effect on simple and selective retrieval time, working memory (1-back) and selective attention, but there was a significant decrease on working memory (2-back) and divided and sustained attention. Therefore, it can be said that sleep deprivation has a negative effect on some components related to sports performance and causes a decline in sports performance. Manuscript profile -
Open Access Article
179 - Numerical Evaluation of Columns’ Uplift in Bracing Structures
Abozar saleh seyadmehdi zahrayiABSTRACT One of the forces occurring during an earthquake is the tensile force that arise in the columns. This phenomenon is called ‘uplift’. It causes damage in column, base plate and anchor bolts. In the absence of app MoreABSTRACT One of the forces occurring during an earthquake is the tensile force that arise in the columns. This phenomenon is called ‘uplift’. It causes damage in column, base plate and anchor bolts. In the absence of appropriate control it may cause the building to collaps. Knowing the reasons which lead to such phonomenon will clarify the point that such phonmenon needs to be controlled. The present study has tried to offer solutions by which the uplift in columns can bereduced. This study has tried to by offering solutions the uplift in columns is reduced. To do so, the numerical models for two buildings were applied in which the location of the braced were changed and the number of brace columns were increased hoping to reduce the uplift strength. For each building, a separate model was built. In the models the proposed ways to reduce uplift were applied. Both EBF and CBF types of the braces were assessed. The numerical results obtained from the study indicate that using the single brace at the corners of the building, aiming to neutralize the uplift does not seem to be appropriate and that even the existence of an additional intermediate frame braced for further support might be needed. The present study showed that the increase in the number of span bracing in different places (situations) are effective in reducing the uplift more than 50%. Also, CBF in lateral columns and EBF for intermediate columns are better ways to reduce uplift, and that different numerical results according to the location of the column in plane. Manuscript profile -
Open Access Article
180 - Mechanistic Investigation of the [1+4] Cycloaddition Reaction Between Alkyl Isocyanides and 3-benzylidene-2,4-pentanedione: A Theoretical Study
Mohammad Zakarianezhad Batoul Makiabadi Atefeh Abbaslou -
Open Access Article
181 - Wood-ash (WA): a highly efficient biocatalyst for the synthesis of α-amino nitrile derivatives using one-pot multicomponent reaction
Rezvaneh Rostamian Daryoush Zareyee Mohammad Khalilzadeh -
Open Access Article
182 - Green synthesis and study of antioxidant activity of indole derivatives using multicomponent reaction of 2,4-diaminoacetophenone
Parvaneh Firoozi-khanghah Nafiseh Tabarsaei Morad Avarsaji -
Open Access Article
183 - A Simple and one-pot synthesis of imintriazole derivatives under Solvent-free conditions
Narges Ghasemi Parvaneh Firoozi Khanghah Mahboubeh Ghasemian Dazmiri -
Open Access Article
184 - Synthesis of isoquinoline and quinoline derivatives using multicomponent reactions of ammonium acetate
Samanehsadat Sharifi Samira Khandan -
Open Access Article
185 - Catalyst free synthesis of pyrrole derivatives using multicomponent reactions
Samanehsadat Sharifi Narjes Haeizadeh -
Open Access Article
186 - Green synthesis of imidazole derivatives using multicomponent reactions
Narges Ghasemi -
Open Access Article
187 - Green synthesis of morpholine-2-thione by multicomponent reaction of aziridines
Narges Ghasemi Samaneh sadat Sharifi -
Open Access Article
188 - Cellulose nanocrystal functionalized palladium nanoparticles as an efficient heterogeneous catalyst for the synthesis of α-amino nitriles via Strecker reaction
Atieh Mirosanloo Daryoush Zareyee Mohammad Khalilzadeh -
Open Access Article
189 - A novel three-component reactions of 4-hydroxycumarine for the synthesis of oxazine derivatives in water
Seyyed Jalal Shams Najafi Maryam Ghazvini Atefeh Navabi -
Open Access Article
190 - An efficient synthesis of new derivatives of thiazole using multicomponent reactions
Mahboubeh Ghasemian Dazmiri Loghman Moradi -
Open Access Article
191 - The Effect of Action and Strategic Computer Games on Selective Reaction Time and Impulsive Response in School Pupils
Ahmad Jadidian Hassan Pasha SharifiThe present study was conducted to examine the effect of action and strategic computer games on visual and audio selective reaction times and impulsive responses in school pupils. The research method was causal-comparative. The statistical population included all 13-18- MoreThe present study was conducted to examine the effect of action and strategic computer games on visual and audio selective reaction times and impulsive responses in school pupils. The research method was causal-comparative. The statistical population included all 13-18-year-old boy school pupils in Hamedan. The sampling method was non-random voluntary and purposeful sampling to match the procedure into groups. Two test groups (action computer games and strategic computer games) were matched in a targeted manner with a control group that lacked any experience of computer games. The selective reaction time and impulsive responses of subjects were measured by advanced reaction time software. The data were analyzed by MANOVA and ANOVA. The results revealed that both reaction times in test groups were faster than in control group. The two reaction times in action games group were faster than in strategic games group, and the impulsive responses in computer games groups (test groups) were fewer than in control group. Manuscript profile -
Open Access Article
192 - Evaluation of virulence and enterotoxin genes in Salmonella enteritidis strains isolated from Meat and Egg samples by Multiplex-PCR
Toktam Khodadadipour Kumarss Amini Razagh MahmoudiToday,food borne diseases are one of the most serious problems and occur as a result of consumption to contaminated food and water. The aim of the study was evaluation of virulence and enterotoxin genes in Salmonella enteritidis strains isolated from food samples by mul MoreToday,food borne diseases are one of the most serious problems and occur as a result of consumption to contaminated food and water. The aim of the study was evaluation of virulence and enterotoxin genes in Salmonella enteritidis strains isolated from food samples by multiplex-PCR. This descriptive, cross-sectional study was performed at 2014 on the 1250 no duplicative and non-repetitive food samples. M-PCR assay was done in order to detection of Stn،sopB،slyA،spvc and Phop/Q genes. Sixty Salmonella enteritidis strains were obtained from poultry meat (35 strains, 58.3%) and eggs (25 strains, 41.6%), respectively. molecular analysis distribution showed all isolates (100%) were absence for spvC gene. The highest and lowest prevalence of the genes were related to Phop/Q and SopB,33.3% and 1.6%, respectively. Evaluation of virulence genes and enterotoxin in the Salmonella enteritidis isolated from the food samples are useful because of presence of the genes and efficacy of M-PCR method in epidemiological investigation and assessment of intraspecies genes transfer in food samples. Manuscript profile -
Open Access Article
193 - (Diacetoxyiodo)benzene (DIB) catalyzed green and efficient synthesis of biscoumarin derivatives in aqueous media
Amit Waghmare Shivaji Pandit -
Open Access Article
194 - Synthesis of spirooxindole derivatives catalyzed by Fe (III)@graphitic carbon nitride nanocomposite via one-pot multi-component reaction
Ali Allahresani Bahare Taheri Mohammad Ali Nasseri -
Open Access Article
195 - A novel and eco-friendly o-phenylendiamine stabilized on silica-coated magnetic nanocatalyst for the synthesis of indenoquinoline derivatives under ultrasonic-assisted solvent-free conditions
Ali Maleki Reza Ghalavand Razieh Firouzi-Haji -
Open Access Article
196 - Lump Kinetic Method in Solving Kinetic Problems and Cracking Reaction Mechanism: A Review
hasanudin Hasanudin Wan Asri Karna Wijaya -
Open Access Article
197 - Baker’s yeast catalyzed Henry reaction: Biocatalytic C-C bond formation
Prabhakar Shrivas Nitesh Punyapreddiwar Atul Wankhade Sangesh Zodape Umesh Pratap -
Open Access Article
198 - Synthesis and characterization of Pt3Co bimetallic nanoparticles supported on MWCNT as an electrocatalyst for methanol oxidation
Mohammad Hossein Nobahari Ahmad Nozad Golikand Mojtaba Bagherzadeh -
Open Access Article
199 - Preparation and characterization of ionic liquid functionalized SBA-15 and its application in the synthesis of 2,3-dihydroquinazolinones
Ghodsi Mohammadi Ziarani Leila Seiedakbari Parisa Gholamzadeh Alireza Badiei -
Open Access Article
200 - (CTA)3[SiW12]-Li+-MMT: Efficient nanocatalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions
Esmayeel Abbaspour-Gilandeh Mehraneh Aghaei-Hashjin Hashem Azizi -
Open Access Article
201 - Green approach for the synthesis of pyranopyrazoles and hexahydroquinoline-3-carboxamides using unripe grape juice (verjuice) as catalyst
Masoud Mokhtary -
Open Access Article
202 - n-Octyl-3-methylpipyridinium bromide ([OMePPy]+Br-): novel ionic liquid to promote green synthesis of polycyclic fused acridines
Kobra Nikoofar Fatemeh Shahriyari -
Open Access Article
203 - Fe3O4@SiO2 nanoparticles: An efficient, green and magnetically reusable catalyst for the one-pot synthesis of 14-aryl-14H-dibenzo[a,i]xanthene-8,13-dione derivatives
Mohammad Ali Ghasemzadeh Mina Azimi-Nasrabad Javad Safaei-Ghomi -
Open Access Article
204 - Brönsted acidic ionic liquid as a recyclable catalyst for the one pot four-component synthesis of substituted pyrano[2,3-c]pyrazoles
Leila Khazdooz Amin Zarei -
Open Access Article
205 - An air stable and efficient palladium catalyst for Suzuki-Miyaura cross coupling reaction at room temperature
Raheleh Pourkaveh Hirbod Karimi -
Open Access Article
206 - 1-(1-Propylsulfonic)-3-methylimidazolium chloride Brønsted acidic ionic liquid catalyzed one-pot synthesis of 14-aryl-14H-dibenzo[a,j]xanthene derivatives under solvent-free conditions
Sima Abbaspour Mogharab Torabi Jafroudi Shima Haghi Sohan Rezayati -
Open Access Article
207 - Application of silica vanadic acid as a dual Lewis and Bronsted acid catalytic ability in Dakin West reaction
Malihe Safaiee Mohammad Ali Zolfigol Fatemeh Derakhshan-Panah Mohammad Mokhlesi -
Open Access Article
208 - Synthesis of 4-(trifluoromethyl) coumarins using nano sulfated-titania as solid acid catalyst under solvent-free conditions
Mona Hosseini-Sarvari Sepideh Najafvand-Derikvandi -
Open Access Article
209 - Environmentally benign synthesis of 14-Phenyl-8H-Dibenzo[a,i]xanthene-8,13(14H)-Diones using CuI nanoparticles as an efficient catalyst
Javad Safaei-Ghomi Jalal Shapoori Mohammad Ali Ghasemzadeh -
Open Access Article
210 - Tungstophosphoric acid embedded magnetic chitosan as a green catalyst for the synthesis of N-cyclohexyl-3-aryl quinoxaline-2-amines
Ali Ayati Mansoureh Daraie Majid Heravi Bahareh Tanhaei -
Open Access Article
211 - One-pot synthesis of 2-amino-3-cyanopyridine derivatives catalyzed by zinc zirconium phosphate in solvent-free conditions
Hirbod Karimi -
Open Access Article
212 - Synthesis of the biologically active henna based benzochromene derivatives using ionic liquid functionalized SBA-15 as a nanoreactor
Ghodsi Mohammadi Ziarani Hoda Mollabagher Parisa Gholamzadeh Alireza Badiei Fatemeh Yazdian -
Open Access Article
213 - One-pot pseudo-five-component synthesis of dihydropyrano[2,3-g] chromenes using sodium phthalimide/[BMIM]BF4 as high efficient catalytic system
Leila Moradi Maryam Aghamohammad Sadegh -
Open Access Article
214 - Silica-anchored Cu(I) aminothiophenol complex: An efficient heterogeneous catalyst for synthesis of 1,4-disubstituted 1,2,3-triazoles in water
Mohammad Bakherad Ali Keivanloo Amir Hossein Amin Pooya Ghmari -
Open Access Article
215 - Employing a hydrophobic-bentonite as a highly efficient and versatile catalyst for a green one-pot and rapid synthesis of 4H-benzo-[b]-pyran derivatives
Mohammad Ebrahim Sedaghat Faranak Farhadi Mohammad Reza Nazarifar Rezvan Sheikhi Kamareji -
Open Access Article
216 - Nano-BF3/cellulose as a biodegradable novel catalyst for synthesis of highly functionalized tetrahydropyridines
Seyede Azita Fazeli-Attar Bi Bi Fatemeh Mirjalili -
Open Access Article
217 - The formate and redox mechanisms of water-gas shift reaction on the surface of Ag: A nanocluster model based on DFT study
Darioush Sharafie Ali Arab Mostafa Fazli -
Open Access Article
218 - Polyvinylpolypyrrolidone supported chlorosulfonic acid: An efficient catalyst for the one-pot synthesis of hexahydroquinolines
Mahshid Yosefzadeh Masoud Mokhtary -
Open Access Article
219 - Et3N/H2O: A green and inexpensive organocatalytic medium for efficient Baylis-Hillman reaction
Mohammad Saeed Abaee Ali Akbari Mohammad Majid Mojtahedi -
Open Access Article
220 - Introduction of Brönsted acidic ionic liquid supported on nanoporous Na+-montmorillonite as an efficient catalyst for the synthesis of 2-amino-tetrahydro-4H-pyrans
Farhad Shirini Masoumeh Makhsous Mohadeseh Seddighi -
Open Access Article
221 - One-pot synthesis of tetrahydropyrimido[4,5-b]quinoline derivatives using sulfonic acid functionalized SBA-15 and their antimicrobial activities
Ghodsi Mohammadi Ziarani Narges Hosseini Nasab Mahshid Rahimifard Taraneh Hajiashrafi Alireza Badiei Ali Abolhassani Soorki -
Open Access Article
222 - Biomimetic synthesis of 1-aryl-2,5-dimethyl pyrroles using egg white nano-ovalbumin at room temperature under solvent-free conditions
Naeimeh Salehi Bi Bi Fatemeh Mirjalili -
Open Access Article
223 - N,N-Dimethylbiguanide immobilized on mesoporous and magnetically separable silica: Highly selective and feasible organocatalyst for synthesis of β-nitroalcohols
Gisya Abdi Abdolhamid Alizadeh Mohammad Khodaei Mustaffa Shamsuddin Sohrab Ghouzivand Mitra Fakhari Mojtaba Beygzadeh Amirhossein Fallah -
Open Access Article
224 - Maltose as a green catalyst for the synthesis of 3,4,5-substituted furan-2(5H) ones in water
Faranak Farhadpour Nourallah Hazeri Sajjad Salahi Parvaneh Dastoorani Razieh Doostmohammadi Mojtaba Lashkari Majid Ghashang Malek Taher Maghsoodlou -
Open Access Article
225 - Synthesis of functionalized aryl-alkenes catalyzed by CN-ortho-palladated complex of 2,3-dimethoxybenzaldehyde oxime under microwave irradiation
Fatemeh Rafiee Abdol Reza Hajipour -
Open Access Article
226 - Rice husk ash (RHA): A Highly efficient solid acid catalyst for the oxidation of alcohols and trimethylsilyl, tetrahydropyranyl and methoxymethyl ethers with CrO3
Farhad Shirini Masoumeh Abedini Mahnaz Shamsi-Sani Mohadeseh Seddighi -
Open Access Article
227 - Chloroacetic acid-promoted heterocyclic reactions: Efficient preparation of tetrahydropyridines and 2,3-dihydroquinazolin-4(1H)-ones
Malek Taher Maghsoodlou Nourallah Hazeri Elham Fereidooni Sajjad Salahi Nasrin Mahmoudabadi Naeime Khorshidi Jasem Aboonajmi Mojtaba Lashakri -
Open Access Article
228 - Tetramethylguanidiniumtriflate catalyzed Henry reaction of isatins: An efficient synthesis of 3-hydroxy-3-(nitromethyl)indolin-2-one derivatives and their anti-diabetic activity
Leila Youseftabar-Miri Maryam Rafieirad -
Open Access Article
229 - SFHS: Reusable catalyst for the synthesis of polyhydroquinoline derivatives and its molecular docking studies against tyrosine protein kinase
Amit Waghmare Tushar Patil Kailash Kadam Shivaji Pandit -
Open Access Article
230 - New method for preparation of MWCNT-SO3H as an efficient and reusable catalyst for the solvent-free synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones
Leila Moradi Gholam Reza Najafi Hakimeh Saeidiroshan -
Open Access Article
231 - Green synthesis of bis(indolyl)methanes in water using sulfonic acid functionalized silica (SiO2-Pr-SO3H)
Ghodsi Mohammadi Ziarani Zeinab Aslani Shima Asadi -
Open Access Article
232 - Highly efficient multicomponent Biginelli’s synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by Al-MCM-41 under solvent-free conditions
Soheil Sayyahi Mehdi Behvandi Behvandi -
Open Access Article
233 - Nano TiO2@SiO2 as an efficient and reusable catalyst for the synthesis of multi-substituted imidazoles
Maryam Haghighi Kobra Nikoofar -
Open Access Article
234 - Phospho sulfonic acid: an efficient solid acid catalyst for the facile preparation of 1,4-dihydropyridines
Sobhan Rezayati Parisa Javanmardi -
Open Access Article
235 - An efficient synthesis of 4-aryl-7-benzylidene-hexahydro-2H-cyclopenta[d] pyrimidin-2-ones/thiones catalyzed by p-dodecylbenzenesulfonic acid
Krishnamoorthy Aswin Majid Ghashang Sheik Mansoor -
Open Access Article
236 - Et3N as a catalyst for the synthesis of indeno[1,2-b]chromene derivatives via three-component condensation reaction
Ali Sadeghi Ali Hossein Rezayan Ali Farajtabar -
Open Access Article
237 - Introducing Pt/ZnO as a new non carbon substrate electro catalyst for oxygen reduction reaction at low temperature acidic fuel cells
Rasol Abdullah Mirzaie Fatemeh Hamedi -
Open Access Article
238 - L-Proline catalyzed synthesis of Betti bases and biscoumarin derivatives
Samaneh Zahiri Masoud Mokhtary Mogharab Torabi -
Open Access Article
239 - Thiamine hydrochloride (vitamin B1) as an efficient catalyst for the synthesis of 4-(3H)-Quinazolinone derivatives using grinding method.
Deepak Kawade Mahendra Chaudhari Jitendra Gujar Murlidhar Shingare -
Open Access Article
240 - Application of SBA-Pr-SO3H as a solid acid nanoreactor in the Biginelli reaction
Ghodsi Mohammadi Ziarani Shima Ghorbi Parisa Gholamzadeh Alireza Badiei -
Open Access Article
241 - Synthesis of methyl 6-amino-5-cyano-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates using nanocrystalline ZnZr4(PO4)6 ceramics as an efficient catalyst
Javad Safaei-Ghomi Mehrnoosh Asgari-Kheirabadi Hossein Shahbazi-Alvi Abolfazl Ziarati -
Open Access Article
242 - Oxalic acid dihydrate catalyzed synthesis of 3,4-dihydropyrimidin-2-(1H)-one derivatives under thermal and solvent-free conditions
Farzaneh Mohamad Pour Malek Taher Maghsoodlou Reza Heydari Mojtaba Lashkari -
Open Access Article
243 - Nano-SiO2/hexamethylenetetramine promoted synthesis of pyrano[2,3-c] pyrazoles under solvent-free conditions
Bi Bi Fatemeh Mirjalili Mina Keihanfar -
Open Access Article
244 - Fe3O4@nano-dextrin/Ti(IV) as a bio-based magnetic nano-catalyst for facile synthesis of 2,3-dihydroquinazolin-4(1H)-ones
Elaheh Babaei Bi Bi Fatemeh Mirjalili -
Open Access Article
245 - Pyridinium based ionic liquids as promoters for a green and selective synthesis of N-monomethylanilines
Pranab Jyoti Das Dimpee Das -
Open Access Article
246 - Synthesis and in vitro antibacterial study of dihydropyrano[3,2-c]chromene derivatives by nano fluoro apatite doped with Mg and Si as a cooperative catalyst
Elmira Jahangard Leila Khazdooz Amin Zarei -
Open Access Article
247 - SBA-15-supported-dithizone-copper(I): An efficient heterogeneous catalyst for synthesis of 1,4-disubstituted 1,2,3-triazoles in water
Ahmad Kakavand Ghalenoei Mohammad Bakherad Ali Keivanloo -
Open Access Article
248 - Application of a mesoporous nanomaterial based on basic ionic liquid anchored to silica as a highly effective catalyst for the production of 2-amino-4H-chromenes
Zahra Abshirini Alireza Kohzadian Zahra Paryav Abdolkarim Zare -
Open Access Article
249 - Synthesis, characterization and using Fe3O4@SiO2@FeCl3 as a new nanocatalyst for aza-Michael reaction between amines and ethyl crotonate
Hamid Parsa Mohammad Javad Taghizadeh Mojtaba Mossavi Jaber Hosseini -
Open Access Article
250 - Spotlight: Use of 1,3-dioxan-5-one derivatives in organic synthesis
Mohammad Javad Poursharifi -
Open Access Article
251 - Novel nanomagnetic material with dimethylamino tag: a selective and recyclable catalyst for the reaction of malononitrile, aryl aldehydes and dimedone
Aysoda Ghobadpoor Mohammad Mehdi Eskandari Abdolkarim Zare Mostafa Karami -
Open Access Article
252 - A green method for the synthesis of indeno[1,2-b]pyridines using Fe3O4@SiO2@PrSO3H as a nanomagnetic catalyst
Zohreh Kheilkordi Ghodsi Mohammadi Ziarani Alireza Badiei Hossein Vojoudi -
Open Access Article
253 - Photo Catalysis Desulfurization at Copper Oxides /Titanium Oxide Nanotubes Under UV and Visible Light Irradiation
Hameed Hussein Alwan -
Open Access Article
254 - Imidazolium Hydrogen Sulphate Supported on Copper Oxide Nanoparticles as an efficient simple Heterogeneous Acidic Catalyst for Multi-component Synthesis of 1, 4- dihydro Pyrano [2, 3-c] pyrazoles Derivatives
Elham Fadavipoor Rashid Badri -
Open Access Article
255 - Magnesium-iron bimetal oxides as an effective magnetized solid-base catalyst for the synthesis of substituted 2-aminthiophenes
Rayhaneh Ashkevar-Vakili Farid Moeinpour -
Open Access Article
256 - Preparation, Characterization and, Activity of CoMo supported on Graphene for Heavy Naphtha Hydro-desulfurization reaction
Hameed Hussein Alwan Hasan Makki Tahseen A. Al-Hattab -
Open Access Article
257 - Novel acidic ChCl/TFA DES as reaction medium and catalyst for Biginelli and Hantzsch reactions
Adeleh Moshtaghi Zonouz Abdolreza Abri Nasrin babajani Hemayat Shekaari -
Open Access Article
258 - Fe3O4@SiO2@Vitamin C@Fe2O3 Nanoparticles as a Novel Green Catalyst for One-pot Synthesis of 3-amino-1-aryl-1H-benzo[f]chromene-2-carbonitrile Derivatives
Naghmeh Darya Hassan Tajik -
Open Access Article
259 - Improvement of Isopropyl Propionate Esterification Reaction using a Vapor Permeation Membrane Reactor
Elham Ameri Ahmad Moheb -
Open Access Article
260 - Carbon Quantum Dots (CQDs): As a multipurpose catalyst
Milad Mohammadi Rasooll -
Open Access Article
261 - Synthesis of 1,3-diphenyl-2-propyn-1-ol derivatives in water catalyzed by silver ions immobilized on the magnetic cross-linked chitosan
Fatemeh Rafiee Sahar Kermani -
Open Access Article
262 - La2O3 as a very effective double-functional catalyst for the production of 2-amino-4-aryl-4H-pyrans and Pyrazolopyranopyrimidines
Alireza Kohzadian Rohollah Fathollahi Mostafa Karami Esmail Korani Abdolkarim Zare -
Open Access Article
263 - Novel Silica-coated Magnetic Nanoparticles and Their Synthetic Applications
Shripad Patil -
Open Access Article
264 - Magnetically recoverable nano-crystalline NiFe2O4 catalyzed green and sustainable synthesis of functionalized pyrano-pyrazol, pyrano-coumarin, and 4H-chromene derivatives
Koyel Pradhan -
Open Access Article
265 - Rapid oxidation of alcohols and trimethylsilyl and tetrahydropyranyl ethers with CrO3 in the presence of sulfonic acid functionalized ordered nanoporous Na+-montmorillonite
Farhad Shirini Masoumeh Abedini Ahmad Nasiri Abkenar Bita Baghernejad -
Open Access Article
266 - Nano-Silica phosphoric acid: an efficient catalyst for one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones (thiones) under solvent-free or sonication conditions
Abdolhamid Bamoniri Bi Bi Fatemeh Mirjalili Sedigheh Nazemian -
Open Access Article
267 - A new application of nano-graphene oxide as a heterogeneous catalyst in crossed-aldol condensation reaction under solvent-free conditions
Mohammad Nasseri Ali Allahresani Heidar Raissi -
Open Access Article
268 - Improving methodology for the preparation of highly substituted imidazoles using nano-MgAl2O4 as catalyst under microwave irradiation
Javad Safari Soheila Gandomi-Ravandi Zahra Akbari -
Open Access Article
269 - Sulfonated polystyrene/montmorillonite nanocomposite as a new and efficient catalyst for the solvent-free Mannich reaction
Ahmad Reza Massah Roozbeh Kalbasi Mitra Toghyani -
Open Access Article
270 - 1,3-Dibromo-5,5-dimethylhydantoin (DBH) as a cheap and efficient catalyst for the synthesis of polyhydroquinolines and 12-aryl-8,9,10,12-tetrahydro [a] xanthene-11-ones
Farhad Shirini Gholam Hossein Imanzadeh Masoumeh Abedini Parisa Ghods Ghasemabadi -
Open Access Article
271 - Synthesis of 4,4′-(arylmethylene)bis(1H-pyrazol-5-ols) via multi-component reactions by using silica-bonded sulfamic acid derivatives
Shekoofeh Tayebi Khodabakhsh Niknam -
Open Access Article
272 - CuO-CeO2 nanocomposite: A green recyclable catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones
Jalal Albadi Azam Mansournezhad -
Open Access Article
273 - Eggshell: A green and efficient heterogeneous catalyst for the synthesis of pyrano[3,2-c]quinoline
Leila Youseftabar-Miri Fatemeh Akbari Farshid Ghraghsahar -
Open Access Article
274 - [BMIm]BF4-LiCl: An effective catalytic system for the synthesis of pyrano[3,2-c]chromene and pyrano[4,3-b]pyrone derivatives
Esmayeel Abbaspour-Gilandeh Seyyedeh Cobra Azimi Kurosh Rad-Moghadam Aidin Mohammadi-Barkchai -
Open Access Article
275 - Nanocrystalline TiO2 as an efficient and reusable catalyst for the one-pot synthesis of polyhydroquinolien derivatives via Hantzsch reaction
Farhad Shirini Seyyed Vahid Atghia Meysam Alipour Khoshdel -
Open Access Article
276 - Application of dimeric ortho-palladated complex of 2-methoxyphenethylamine in the Heck coupling reaction
Abdol Hajipour Fatemeh Abrishami -
Open Access Article
277 - L-proline: An efficient catalyst for the synthesis of quinoline derivatives in aqueous media
Elham Davoodi Leila Youseftabar-Miri Hamideh Hosseinjani-Pirdehi -
Open Access Article
278 - NanoZnO as an efficient & reusable catalyst for the preparation of 1,4-DHPs via Hantzsch reaction
Fatemeh Tamaddon Somayeh Moradi -
Open Access Article
279 - An efficient one-pot synthesis of α-amino nitriles using ecofriendly Lewis-acidic ionic liquid choline chloride.2ZnCl2
Abdol Hajipour Ifa Mahboobi Dehbane -
Open Access Article
280 - Boric acid as a highly efficient and reusable catalyst for the one-pot synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free conditions
Sobhan Rezayati Rahimeh Hajinasiri Zahra Erfani Saman Rezayati Saeid Afshari-sharifabad -
Open Access Article
281 - Silica-bonded n-propyldiethylenetriamine sulfamic acid as a recyclable solid acid catalyst for the synthesis of coumarin and biscoumarin derivatives
Khodabakhsh Niknam Seyed Ahmad Sajadi Roghayeh Hosseini Mojtaba Baghernejad -
Open Access Article
282 - A fast, simple and convenient procedure for the synthesis of fused pyrimidinone derivatives by using [Hmim][HSO4] as a green, efficient and reusable catalyst under solvent-free conditions
Leila Khazdooz Amin Zarei Abdol Hajipour Nafisehsadat Sheikhan -
Open Access Article
283 - Suzuki-Miyaura cross-coupling reaction catalyzed using highly efficient CN-dimeric ortho-palladated complex under microwave irradiation and conventional heating
Abdol Reza Hajipour Fatemeh Abrishami Fatemeh Rafiee -
Open Access Article
284 - Decatungstodivanadogermanic heteropoly acid (H6GeW10V2O40.22H2O): A green and reusable heterogeneous catalyst for the synthesis of Biginelli-type 3,4-dihydropyrimidin-2-(1H)-ones/thiones
Srinivasa Rao Jetti Divya Verma Shubha Jain -
Open Access Article
285 - Melamine trisulfonic acid (MTSA) as an efficient catalyst for the synthesis of triazolo[1,2-a]indazole-triones and some 2H-indazolo[2,1-b]phthalazine-triones
Ardeshir Khazaei Mohammad Ali Zolfigol Toktam Faal Rastegar Gholamabbas Chehardoli Shadpour Mallakpour -
Open Access Article
286 - Mild and efficient solvent-free tetrahydropyranylation (THP) of alcohols catalyzed by reusable acidic ionic liquid [Et3N(CH2)4SO3H][OTs]
Abdol Reza Hajipour Ghobad Azizi -
Open Access Article
287 - بررسی نقش حاملی گوسفندان در عفونت با کلامیدیا پکوروم
ن. موری بختیاری س. براتی س. گودرزیدر طی 40 سال گذشته، شواهدی مبنی بر حضور عفونت­های ناشی از باکتری­های داخل سلولی جنس کلامیدیا در گونه­های مختلف دامی جمع­آوری شده­ است. با روش­های مختلفی در نمونه­های کلینیکی چنین حضور گسترده­ای به اثبات رسیده ­است اما احتمالا اغلب عفو Moreدر طی 40 سال گذشته، شواهدی مبنی بر حضور عفونت­های ناشی از باکتری­های داخل سلولی جنس کلامیدیا در گونه­های مختلف دامی جمع­آوری شده­ است. با روش­های مختلفی در نمونه­های کلینیکی چنین حضور گسترده­ای به اثبات رسیده ­است اما احتمالا اغلب عفونت­های فاقد علایم از سطح عفونت پایین­تری برخودار هستند. در این مطالعه­ اپیدمیولوژیک اولیه، ما به دنبال حضور عفونت کلامیدیایی چشمی و واژنی در گوسفندان به ظاهر سالم بودیم. در این تحقیق، 33 رأس گوسفند و 20 رأس بز که پیش از نمونه­گیری احتمال سابقه­ انتقال جنسی کلامیدیا را داشتند، از طریق سواب چشمی (53 سواب) و سواب واژنی (53 سواب) مورد بررسی قرار گرفتند. پس از استخراج DNA با روش جوشاندن، ارزیابی حضور کلامیدیا پکوروم از طریق روش واکنش زنجیره­ای پلیمراز انجام شد. در این مطالعه از کلامیدیا پکوروم سویه­ی استاندارد W73 به عنوان کنترل مثبت استفاده گردید. در این مطالعه 10 نمونه سواب (از 106 سواب) مشتمل بر 7 سواب واژنی (70 درصد) و 3 سواب چشمی ( 30درصد)، آلوده تشخیص داده شدند. تمامی سواب­های واژنی و 3 سواب چشمی به ترتیب مربوط به حیوانات با سابقه­ سقط و بالغ بودند. با توجه به بالاتر بودن درصد آلودگی به کلامیدیا پکوروم در گوسفندان به ظاهر سالم، احتمال ایجاد حالت حاملی در گوسفند نسبت به بز بیش­تر می­باشد. ترشحات واژنی نسبت به ترشحات چشمی از نقش مهمتری در انتشار عفونت برخوردار می­باشند. به دلیل خطر بالای عفونت­های کلامیدیایی در گاوها، توجه به نقش گوسفندان در اپیدمیولوژی بیماری توصیه می­گردد. Manuscript profile -
Open Access Article
288 - Effect of Tempol in Sasaki Diluent on the Quality and Fertility of Cryopreserved Chicken Semen
M. Shanmugam R.K. Mahapatra -
Open Access Article
289 - Investigating the dependence of Babzia blood parasite prevalence in sheep of Andimshek city in spring and summer, on sex, age and season.
Frough Kajbaf Behnam Pedram Leila Derakhshan Ali Mirzavand Shaqayeq qannadBabesia is also one of the parasites that cause major losses in the animal husbandry industry. Identifying the animals carrying Babesia is importance in controlling and preventing the disease. Microscopic observation of the protozoan parasite in the stained blood in the MoreBabesia is also one of the parasites that cause major losses in the animal husbandry industry. Identifying the animals carrying Babesia is importance in controlling and preventing the disease. Microscopic observation of the protozoan parasite in the stained blood in the acute form and serological tests is helpful, but most Babesia species cannot be differentiated, and false positive and negative results are generally observed in these tests. Our purpuse was to Assessment the prevalence of Babesia parasite in Andimshek city sheep during spring and summer of 2022 and gender and age effects on it, using the molecular method of polymerase chain reactionIn the spring and summer of 2022, 100 females and 100 male apparently healthy sheep from different areas of Andimshek city were completely randomly blood sampled and sent to the laboratory. After extracting DNA from blood, polymerase chain reaction and electrophoresis was performed. Data were statistically analyzed using spss software and T-test statistical method and mean and standard deviation were calculated. The prevalence of Babesia blood parasite in the female sheeps were higher than males. Also prevalence of this blood parasite in sheep over 2 year’s old was higher than under 2 years. But the prevalence rate in males and females in different ages and different months of spring and summer was not significant. The results showed that the prevalence of Babesia blood parasite in Andimeshk city sheeps in spring and summer does not depend on sex, age and season. Manuscript profile -
Open Access Article
290 - An Efficient Auto Redundant Technique for Analysis of Single Layer Grid with Curved Mambers
Ashwin G. Hansora Mangubhai N. Patel Bharatbhai B. Mistry -
Open Access Article
291 - Study of TEM and SHV B-lactamase genes in gentamicin resistant Enterococcus faecalis isolated from consumption red meats.
Rezvan Shirvani Mohammadreza Mehrabi Mohsen MirzaeeBackground and Objectives: Enterococci are part of normal flora of the human gastrointestinal tract. The ability to obtain antibiotic resistance genes, causes new problems in treatment. Enterococcus faecalis is one of the bacteria contaminating the meat and cause signif MoreBackground and Objectives: Enterococci are part of normal flora of the human gastrointestinal tract. The ability to obtain antibiotic resistance genes, causes new problems in treatment. Enterococcus faecalis is one of the bacteria contaminating the meat and cause significant infections in humans. So the purpose of this study was evaluation prevalence of bla TEM and bla SHV genes in gentamicin resistant Enterococcus faecalis isolated from consumption meats. Materials and methods: 181 Enterococcus isolates were collected from consumption meats in Boroujerd slaughterhouse. Bacteria were identified by routine microbiological tests. The antibiotic susceptibility testing on isolates by disk diffusion method according to the CLSI was performed. Finally, to assess the frequency of bla TEM and bla SHV genes in gentamicin resistant Enterococcus faecalis isolated from consumption meats were performed by using PCR and specific primers. Results: Out of the 181 isolates 81 cases (44.75%) were E. faecalis. The results of the antibiogram test, showed that 96.29% of bacteria were resistance to erythromycin, 56.79% to penicillin, 41.96% to tetracycline, 39.50% to ampicillin,39.50% to choloroamfenicol,15.86% to Linezolid, 8.64% to Gentamicins, 4.83% to Streptomycin, 2.46% to Meropenem,3.70% to ciprofloxacin and in the strains gentamicin resistant bla TEM and bla SHV genes not found. Conclusion: Given that this fact the genes producing Betalactamase enzymes are easily transferred via plasmids, lack of tracking the mentioned genes among the studied bacteria suggests, these genes are not transferred along with genes inducing resistance to gentamicin. thus rational and significant relationship between these genes and investigated antibiotic was not observed. Manuscript profile -
Open Access Article
292 - β-aminoketones derivatives synthesize by reusable catalyst of copper coated Fe3O4@Sapogenin
majid heidarpour hossein anaraki ardakani Neda Hasanzadeh Ayeh RayatzadehIn this research, a new magnetic core–shell nanocomposite Fe3O4@Sapogenin/Cu(II) based on quillaja sapogenin was prepared and The structure, magnetic features, and morphology of magnetic nanoparticles (MNPs) Fe3O4@Sapogenin/Cu(II) were studied totally via differen MoreIn this research, a new magnetic core–shell nanocomposite Fe3O4@Sapogenin/Cu(II) based on quillaja sapogenin was prepared and The structure, magnetic features, and morphology of magnetic nanoparticles (MNPs) Fe3O4@Sapogenin/Cu(II) were studied totally via different experiments, such as energy-dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), high-resolution transmissionelectron microscopy (HR-TEM), and Brunauer–Emmett–Teller (BET). vibrating sample magnetometer (VSM), scanning electron microscopy (SEM), inductively coupled plasma (ICP). The achievements demonstrated that the proposed agents were beneficial to synthesis the derivatives of β-aminoketone via a one-pot three-component reaction of ketones, aromatic aldehydes, and aromatic amines in ethanol under environmentally friendly conditions . The advantage of this reaction is the high efficiency of the products and the short reaction time. Furthermore, Fe3O4@Sapogenin/Cu(II) nanocatalyst can be easily recovered magnetically and can be reused for other runs without any reduction in the activity, also, with the use of this catalyst, several a novel products were obtained for the first time. Manuscript profile -
Open Access Article
293 - Evaluation of the influence of using reduced graphene oxide (RGO) on improvement of Cu-MOF performance as electrocatalyst for oxygen reduction reaction in fuel cells
mehdi mehrpouya seyed ali mousaviThe main target of this investigation is to synthesis and introduce several non-metallic electro catalysts with desirable performance and suitable price, for oxygen reduction reaction at cathode side. For this purpose, five electrocatalysts including graphene oxide (GO) MoreThe main target of this investigation is to synthesis and introduce several non-metallic electro catalysts with desirable performance and suitable price, for oxygen reduction reaction at cathode side. For this purpose, five electrocatalysts including graphene oxide (GO), nitrogen and sulfur doped graphene oxide (NS-RGO), copper metal organic framework (Cu-MOF), 6% GO-Cu-MOF, and 8% NS-RGO-Cu-MOF are synthesized by hydrothermal method. In continue, in order to investigate the structure, activity, and performance of synthesized electro catalysts, physical and electrochemical tests are employed, and obtained results are compared to the commercial 20% Pt/C. According to the physical tests outcomes, the structure of the synthesized electrocatalysts is uniform, and the layering is correctly performed. As well as, it was found that the size of electrocatalysts is in the range of nanometer. Based on the electrochemical tests, amongst the synthesized electrocatalysts, 8% NS-RGO-Cu-MOF has the best chemical activity. The onset potential of this catalyst is obtained by -0.06 V vs Ag/AgCl. Also, the peak associated with oxygen reduction reaction is shown in -0.08 V, which the current density in this voltage is -4.8 mA/cm2. Besides, the electron transferred number (n) for 8% NS - RGO - Cu- MOF is computed with the value of 3.53, which it indicates the reaction occurred near to the 4 electron pathway. The onset potential of 6% GO-Cu-MOF is gained by -0.11 V vs Ag/AgCl. Manuscript profile -
Open Access Article
294 - Preparation of heterogeneous magnetic nanocatalysts based on reduced graphene oxide with nickel and cobalt particles and investigation of its activity in Heck and sonogashira cross-coupling reactions and 4-nitrophenol reduction
abdolreza abri forough matloubiToday catalysts are widely used in the production of various materials. Nano-catalysts according to their importance have become one of the most important areas for Nanotechnology research. Development of magnetic catalysts for carbon–carbon and carbon–heter MoreToday catalysts are widely used in the production of various materials. Nano-catalysts according to their importance have become one of the most important areas for Nanotechnology research. Development of magnetic catalysts for carbon–carbon and carbon–heteroatom coupling reactions are one of the most important issues in terms of applications to organic synthesis. At present, many researches are focused on the construction of more active and more stable, heterogeneous Nano-sized metal catalysts, which can be recovered and reused. Nickel and cobalt nanoparticles due to low prices, magnetic properties and high chemical activity attracted particular attention. In this work, nickel and cobalt nanoparticles were synthesized with a green and one-pot method on graphene oxide substrate for reduction reaction of 4-nitrophenol, Heck and Sonogashira cross-coupling reactions. Several characterization techniques such as FTIR, FESEM, XRD, and VSM were employed to characterize the Co and Ni nanoparticle reduced graphene oxide composites witch indicates that nickel and cobalt magnetic particles with a size of about 20-30 nanometers were uniformly anchored on graphene oxide nanosheets. In addition, results showed that incorporation of Co and Ni nanoparticles and GO produce much higher activity in cross-coupling and reduction reactions. The soft-ferromagnetic behavior of the RGO/CoxNi100-x nanocomposite demonstrated the easy separable from the reaction mixture and reusable several times without losing its catalytic activity, Hence, the RGO/CoxNi100-x composites can be a potential promising material to catalyze the cross-coupling reactions Manuscript profile -
Open Access Article
295 - Ni(II) complexes immobilized on magnetic nanoparticles as an efficient semi-heterogeneous catalyst towards diastereoselective nitroaldol (Henry) reaction
seyed jamal tabatabaei پونه سیارنژاد شیما اصغری حمیده آقاحسینی عاصمه مشهدی ملک زاده علی رمضانیUsing of magnetic and recyclable catalysts to promote selective C–C bond formation could help in the design of safer and ‘‘greener’’ chemical manufacturing process. This work describes the preparation of magneto Ni(II) complex (Fe3O4@PCA-Pi MoreUsing of magnetic and recyclable catalysts to promote selective C–C bond formation could help in the design of safer and ‘‘greener’’ chemical manufacturing process. This work describes the preparation of magneto Ni(II) complex (Fe3O4@PCA-Pic/NiII) as a novel semi-heterogeneous system and the evaluation of their potential catalytic activity towards the Henry (nitroaldol) reaction between nitroethane and a variety of aldehydes in aqueous medium. The morphology and structural feature of the catalyst was characterized using different microscopic and spectroscopic techniques such as FT-IR, UV-Vis, TGA, SEM, TEM, ICP, XRD, XPS and VSM. The Fe3O4@PCA-Pic/NiII represented perfect catalytic efficiency and good diastereoselectivity for the nitroaldol reaction. Other notable advantages of this work include high stability and reusability of the catalyst, green reaction conditions, ease of separation of products, and cost-effectiveness. Also, this catalyst can be recycled by applying an external magnetic field and reused up to ten runs without significant loss of activity. Manuscript profile -
Open Access Article
296 - Electrocatalytic activity of Pt/C nanocatalyst stabilized by different amounts of sodium citrate in oxygen reduction reaction
Kulthum Mehrabinejad Mehdi KheirmandIn the present study, Pt(20wt%)/C electrocatalysts for oxygen reduction reaction in the cathode of fuel cells were synthesized with different amounts of trisodium citrate as stabilizing agent, to achieve higher efficiency of platinum electrocatalyst. The electrocatalyst MoreIn the present study, Pt(20wt%)/C electrocatalysts for oxygen reduction reaction in the cathode of fuel cells were synthesized with different amounts of trisodium citrate as stabilizing agent, to achieve higher efficiency of platinum electrocatalyst. The electrocatalysts containing platinum and trisodium citrate with ratios of 1:12, 1:9, 1:6, and 1:3 (Pt/C:TC) were prepared by using the saturation-reduction method. To evaluate the oxygen reduction reaction in the cathode catalyst layer in an acidic environment cyclic voltammetry (CV), linear sweep voltammetry (LSV), rotating disk electrode (RDE), and finally electrochemical impedance spectroscopy (EIS) techniques were applied. Also, morphology of the catalysts was studied with scanning electron microscopy (SEM). The results showed that the efficiency of the synthesized electrocatalysts at a ratio of 1:3 (Pt/C:TC) was better for oxygen reduction. It also had lower charge transfer resistance, more suitable distribution, and higher electrochemically active surface area (14.7 m2gPt). In addition, the number of electrons involved in the oxygen reduction reaction was calculated to follow the four-electron pathway for the electrocatalyst prepared at ratio of 1:3. Manuscript profile -
Open Access Article
297 - Green procedure for synthesis of 3, 4 dihydropyrimidinones using 12-molybdophosphoric acid, as a catalyst and solvent free condition under microwave irradiation
Hojjatollah Salehi -
Open Access Article
298 - 1,10-Phenanthroline as a versatile catalyst in synthesis of tetrahydrobenzo[b]pyrans in aqueous media
اسداله حسن خانی الهه مصدق1,10-Phenanthroline entails several appealing structural and chemical properties: basicity, rigidity, aromaticity, planarity, and chelating capability. This makes it a versatile catalyst in organic chemistry. An efficient and environmentally friendly method for the synt More1,10-Phenanthroline entails several appealing structural and chemical properties: basicity, rigidity, aromaticity, planarity, and chelating capability. This makes it a versatile catalyst in organic chemistry. An efficient and environmentally friendly method for the synthesis of tetrahydrobenzo[b]pyrans as important pharmaceutical compounds has been developed using Phenanthroline (%5 mol( as an organocatalyst. A mixture of an aromatic aldehyde, malononitrile, and 1, 3-dicarbonyl compounds in the presence of the Phenanthroline as homogeneous catalyst at 50º in H2O/EtOH resulted in excellent yields of the corresponding products. This new methodology is of interest due to use of aqueous media as a green solvent system, its short reaction time, high yields, and no further purification. Manuscript profile -
Open Access Article
299 - Optimization of catalyst for oxidative cross-coupling reaction of pyridine N-oxides and benzofurans for the synthesis of biologically active compounds
ابراهیم کیان مهر رکسانا فضلی مارال غلامحسینیIn this study, oxidative coupling of pyridine N-oxides with benzofurans has been investigated through palladium-catalyzed oxidative coupling reactions. Benzofuran derivatives, especially 2-aryl benzofurans, exhibit many functional and biological properties such as antic MoreIn this study, oxidative coupling of pyridine N-oxides with benzofurans has been investigated through palladium-catalyzed oxidative coupling reactions. Benzofuran derivatives, especially 2-aryl benzofurans, exhibit many functional and biological properties such as anticancer, antifungal, and antimalaria activity. These compounds are also used to treat asthma and rheumatism. 2-Pyridyl benzofurans have electroluminescence properties and are used for imaging of beta-amyloid plaques in Alzheimer's disease. In this paper, a series of compounds with anticipated biological properties are prepared with high efficiency by direct formation of a carbon-carbon bond between the two carbon-hydrogen bonds of benzofuran and pyidine N-oxide derivatives bearing electron donating or withdrawing groups, using palladium acetate as a catalyst and copper acetate and bromide as oxidant Manuscript profile -
Open Access Article
300 - A Novel Efficient Solid Acid Nanocatalyst for the Synthesis of 1'-Aryl-2'-(2-oxoindolin-3-yl)spiro[indoline-3,5'-pyrroline]-2,3'-dione Derivatives
کبری نیکوفر زهرا خادمی شیوا خانیPara-toluene sulfonic acid embedded on nano silica )ρ-TSA@nano SiO2( has been synthesized via a simple procedure and characterized by fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM) MorePara-toluene sulfonic acid embedded on nano silica )ρ-TSA@nano SiO2( has been synthesized via a simple procedure and characterized by fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM) techniques. The synthesized nanocatalyst has been utilized to accelerate the one-pot multicomponent condensation reaction of isatins, anilines, and acetone to obtain the corresponding 1'-aryl-2'-(2-oxoindolin-3-yl)spiro[indoline-3,5'-pyrroline]-2,3'-diones at water media under reflux conditions. Utilization of H2O as available and green solvent, excellent yields of products, short reaction times, avoidance of by-products which could be obtained via Aldol condensation of acetone, easily-handle, inexpensive, non-toxic, and heterogeneous nano acid catalyst are some advantageous of the reported method. The recovery and reusability of the nano catalyst has been examined for four runs without activity loss Manuscript profile -
Open Access Article
301 - Preparation of carbon nanotubes / Pt Black composite and its application for electro-catalysis of hydrogen evolution reaction
ابراهیم شجاعی شهلا فتحی فرشته چکینn this work, the carbon nanotubes/platinum black composite was prepared by easy, efficient, and cheap method and morphology of composite was investigated by using tunnelling electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX). The TEM images showed Moren this work, the carbon nanotubes/platinum black composite was prepared by easy, efficient, and cheap method and morphology of composite was investigated by using tunnelling electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX). The TEM images showed that Pt was immobilized like rosary seeds on external walls of carbon nanotubes and the Pt in EDX spectra confirmed presence of Pt element in composite. Then catalytic activity of this nanocomposite was investigated using carbon paste electrode modified with this nanocomposite for hydrogen evolution reaction in acidic media by electrochemical methods such as linear sweep voltammetry. The linear sweep voltammetry of Pt-CNT/CPE electrode exhibits higher current density and less negative value of potential towards hydrogen evolution reaction than the CPE. Effects of different parameters such as electrolyte type, electrolyte concentration, and platinum black/carbon nanotubes ratio were studied for electrocatalysis of hydrogen evolution reaction. The results showed that sulphuric acid 0.1 M and 2:5 ratio was choice as optimum condition for hydrogen evolution reaction. The deposition of this nanocomposite on the electrode caused onset potential of -0.2 V and the lowest Tafel slope of 4.0 V-1 dec-1 for hydrogen evolution reaction. The electron transfer coefficient and exchange current density for the Pt-CNT/CPE were calculated by Tafel plot about 1.3 and 0.12 mA cm-2, respectively for hydrogen evolution reaction. Manuscript profile -
Open Access Article
302 - Effect of In-Service Education Courses on Staff’s Efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick Model
H. Rezazadeh Bahadoran A. Khosravi babadi S. Toontab HaqiqiThis study reviews effect of in-service education courses on staffs' efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick model and the main question of this study is mentioned as follow: whether in-service education courses is effective on MoreThis study reviews effect of in-service education courses on staffs' efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick model and the main question of this study is mentioned as follow: whether in-service education courses is effective on staffs' efficiency of Islamic Azad University South Tehran Branch based on Kirk Patrick? In the way of main question of this study, the major aim is effect of in-service education courses on staffs' efficiency based on Kirk Patrick model. It is worth mentioning that research plan of this study is placed in descriptive studies and is field finding (measurement) type. The statistic community of the study consists of the whole staffs of Islamic Azad University South Tehran Branch (667 peoples) and 247 of them were selected as suitable sample volume by use of stage-random sample method.The used tools for this study are researcher made questionnaire by 30 questions in three categories, reaction, learning, behavior (change of behavior). They were measures in five Likert spectrum and its reliability coefficient is 95%. For analyzing obtained data from questionnaire, we used statistical model of T-one group, T in two independent groups and one-way variance and finally analyzing of data showed that the effect of in-service education courses on staffs' efficiency based on Kirk Patrick model in the level of a =0.01 was higher than middle level and consist of high effect. Manuscript profile -
Open Access Article
303 - The relationship between reaction time,intelligence,and anxiety
Maryam Zia-ei Sholeh AmiriIn order to study the relationship among reaction responded to the Reaction Time Test (Donde, the Cattell Anxiety scale, and the Raven’s Progressive Ma MoreIn order to study the relationship among reaction responded to the Reaction Time Test (Donde, the Cattell Anxiety scale, and the Raven’s Progressive Matrices. Results showed negative significant correlations between Simple Reaction Time (SRT) and intelligence ! "#"" ! -"#$ %& overt !"#"!-"#'$ !"#" r = -"#(#) *+, the males significantly outperformed the females. However, there were no significant gender differences in intelligence and the anxiety level. Also, reaction time and the level of anxiety were not significantly correlated. Manuscript profile -
Open Access Article
304 - Biological control of Fusarium oxysporum f. sp. lycopersici and induction of defensive enzyme of phenylalanine ammonialyse in tomato by Trichoderma and Bacillus antagonist isolates
Shahnaz Aleaghaee Saeed Rezaee Mostafa Ebadi Hamidreza ZamanizadehBackground & Objectives: Fusarium wilt disease is one of the limiting factors of tomato production in most countries, especially in Iran. Considering the malicious effect of chemicals on health, the study on the alternatives for disease controlling is important. Thi MoreBackground & Objectives: Fusarium wilt disease is one of the limiting factors of tomato production in most countries, especially in Iran. Considering the malicious effect of chemicals on health, the study on the alternatives for disease controlling is important. This study aimed to evaluate the ability of Trichoderma and Bacillus isolates on biological control of Fusariumoxysporum f. sp. lycopersici.Materials & Methods: The inhibitory effects of Trichoderma and Bacillus isolates against Fusarium were evaluated on PDA. The ability of the colonization of these antagonists was also examined. The effect of separate and combined application of the antagonists isolates against Fusarium vascular wilt disease severity index and some growth factors of tomato were determined. Also, the potential of these isolates on the induction of phenylalanine ammonlyase was measured in seedlings infected with Fusarium.Results: The biocontrol agents showed different levels of inhibition of Fusarium growth. The Trichoderma isolates were more successful with a high inhibitory effect (72.06% and 69.16%). These isolates were also powerful colonizers of the pathogen. The disease severity was affected by the antagonists at different levels. Separate and combined treatments of Trichoderma isolates were more effective in the reduction of the disease severity and improving the growth factors. The activity of phenylalanine ammonialyas increased in the plants treated with Trichoderma isolates compared to control treatment (Fusarium). The combined application of these isolates was more effective than the separate using of them on the induction of the enzyme.Conclusion: The investigated Trichoderma isolates were successful in controlling the pathogen. Therefore, the use of these isolates as agents with multiplier effects can be effective in biocontrol of tomato Fusarium wilt. Manuscript profile -
Open Access Article
305 - The prevalence of plasmid genes spvB, spvC and spvR in Salmonella enteritidis isolated from poultry industry in Chaharmahal va Bakhtiari province
masoume daruoshi Abbas Doosti Mohammad KargarBackground & Objectives: Salmonellosis is a one of zoonotic diseases and Salmonella enterica is the most frequent agent of this disease. Some serotypes of Salmonella sp. harbour a plasmid which contains spv operon on it. This operon consists of five genes, namely sp MoreBackground & Objectives: Salmonellosis is a one of zoonotic diseases and Salmonella enterica is the most frequent agent of this disease. Some serotypes of Salmonella sp. harbour a plasmid which contains spv operon on it. This operon consists of five genes, namely spvRABCD. The aim of this study was to determine frequency of plasmid genes spvB, spvC and spvR in Salmonellaisolated from poultry industry in Chaharmahal va Bakhtiari province. Materials & Methods: This cross – sectional study was carried out on 305 stool samples obtained from poultries located at Charmahal va Bakhtiari province. Following identification of Salmonella based on routine biochemical tests. Polymerase chain reaction (PCR) assay was used for distinguish the strains and to determine the prevalence of the gene spvB, spvC and spvR. Results: Salmonella were identified in 160 (45.52%) samples, among them 94 cases (75.58%) were identified as Salmonella enteritidis after sefA amplification test. The prevalence of the genes spvB, spvC and spvR were 7.45, 60.76 and 14.69 %, respectively. Conclusion: Due to the prevalence of Salmonella in poultries and to limitation of biochemical and serological tests, employment of molecular tests are very critical for identification of strains of Salmonella enterica and for distinguishing from other strains all around the country. Furthermore, the high prevalence of the plasmid genes involved in systemic infections can be reduced using Antibiotics. Manuscript profile -
Open Access Article
306 - Molecular detection of Mycoplasma hominis from genital secretions of infertile men referred to the Kerman infertility center
Samira Vosooghi Babak Kheirkhah Touraj-Reza Mir-shekari Ashraf Karimi Nik Soudabeh Hamidavi Mohammadpour Naeime Mohseni MoghadamBackground and Objectives: Mycoplasmal genital infections are often associated with devastating effects on quality of sperms, leading to male infertility. The aim of this study was to isolate Mycoplasma hominis from genital secretions of infertile men referred to MoreBackground and Objectives: Mycoplasmal genital infections are often associated with devastating effects on quality of sperms, leading to male infertility. The aim of this study was to isolate Mycoplasma hominis from genital secretions of infertile men referred to the Kerman Infertility Center based on PCR method. Material and Methods: In this cross-sectional study, 58 semen samples were collected from the infertile men who were referred to the Infertility Center of Kerman from May 2012 to September 2012. Infertility condition was confirmed in all samples by performing a semen analysis. After genomic DNA extraction, DNAs were examined by PCR and the primers specific for both the genus Mycoplasma and species Mycoplasma hominis. Results: Overall, 22 samples (37.93%) were detected as Mycoplasml infection, among them 13 samples (22.41%) belonged to Mycoplasma hominis. Also, most of the Mycoplasmal infection were detected in the age group of 29 to 38 years. Conclusion: For the first time in Kerman, we could isolate Mycoplasma hominis from genital secretions of infertile men. The study showed that a relatively high percentage of asymptomatic infertile men were infected with this bacterium. Manuscript profile -
Open Access Article
307 - Molecular screening of astaxanthin-producing yeasts of birch sap-flows in Alborz Province of Iran
Faezeh Ajorloo Mohsen Vaez Jafar HemmatBackground & Objectives: The carotenoid-producing yeasts have a widespread distribiution worldwide. However, isolation of carotenoid-producing yeasts with valuable astaxanthin have been only reported from limited areas and specific habitats. The aim of this st MoreBackground & Objectives: The carotenoid-producing yeasts have a widespread distribiution worldwide. However, isolation of carotenoid-producing yeasts with valuable astaxanthin have been only reported from limited areas and specific habitats. The aim of this study was to apply the multiple polymerase chain reaction method for faster molecular screening of isolates for the yeasts in the exudation sap from birch trees (Betula pendula Roth.) in Alborz Province of Iran with astaxanthin production capacity and toevaluate its efficiency.Materials & Methods: This cross-sectional study was carried out by sampling in May 2018 from one of the natural habitats of birch trees Batula Pendula in Alborz Province, Iran. After isolation of yeasts using selected media and purification of yeast colonies with various pink to red colors, yeasts genomic nucleic acids were extracted and molecular screening for astaxanthin-producing detection of isolates was performed by multiple polymerase chain reaction (Multiplex-PCR).Results: Out of 42 pigmented colonies during sampling and isolation in one cross-sectional study, 23 pink to red colonies were evaluated by Multiplex-PCR method. Of these isolates, three were positive and the rest were negative. The results were validated by determining the ribosomal gene sequencing.Conclusion: The present study demonstrates the specificity of the multiple polymerase chain reaction method in fast and cost-effective molecular screening of astaxanthin-producing yeast isolates and the applicability of this method to study other natural habitats of these yeasts. Manuscript profile -
Open Access Article
308 - Study of bioinformatics and phylogenetic relationship of Iranian Bacillus thuringiensis strains by using 16S rDNA gene sequence
Maryam Rashki Mojtaba MortazaviBackground & Objectives: Gram-positive bacterium, Bacillus thuringiensis, produces protein crystals with insecticidal properties. Partial rDNA sequence analysis is used to study the evolution and classification of living organisms. The study was conducted on 16S rDN MoreBackground & Objectives: Gram-positive bacterium, Bacillus thuringiensis, produces protein crystals with insecticidal properties. Partial rDNA sequence analysis is used to study the evolution and classification of living organisms. The study was conducted on 16S rDNA sequence of five native isolates of Bacillus thuringiensis using the polymerase chain reaction technique. Materials & Methods: Characteristics and phylogenetic relationships between five sequences of native isolates along with other isolates in the gene bank and other species of the genus Bacillus were performed with Mesquite software and leBIBIQBPP database. Results: The five native isolates were 92.06 to 99.93% similar to each other and 99.73% to 100% similar to other isolates of Bacillus thuringiensis. Phylogenetic trees showed Bt 1019, Bt 1020 and Bt 1039 in the first group and Bt 1001 and Bt 1091 in the second group. Based on Bt 1001 sequence analysis using leBIBIQBPP, the minimum distance with Bacillus frigoritolerans was obtained. The sequence of Bacillus anthracis was close to Bt 1019. The Bt 1020 sequence was closest to Bacillus cereus. In the case of Bt 1039, in addition to Bacillus cereus, the lowest distance was observed with Bacillus marcorinectum. The Bt 1091 sequence showed the most similarity with Bacillus frigoritolerans. Conclusion: Protein crystals were observed in the native bacteria. Toxic crystals are produced only by Bacillus thuringiensis. BLAST program for 16S rDNA gene sequence in the native isolates also showed the most similarity to Bacillus thuringiensis isolates in the gene bank. Moreover, the results predicted that the three native isolates Bt 1019, Bt 1020 and Bt 1039 could be toxic against lepidopteran pests and two isolates Bt 1001 and Bt 1091 could be toxic against coleopteran pests. Manuscript profile -
Open Access Article
309 - Bioremediation potential of indigenous gram-positive bacteria isolated from contaminated soil with polycyclic aromatic hydrocarbons
Somayeh Scandari Mehran Hoodaji Arezo Tahmourespour Atoosa AbdollahiBackground and Objectives: Polycyclic aromatic hydrocarbons (PAHs) were extensively spread in the environment and are regarded as one of the mutagenic and carcinogenic agents on living creatures. Among the vast variety of procedures for the elimination of contaminatio MoreBackground and Objectives: Polycyclic aromatic hydrocarbons (PAHs) were extensively spread in the environment and are regarded as one of the mutagenic and carcinogenic agents on living creatures. Among the vast variety of procedures for the elimination of contamination, biological removal is capable of transmuting pollutants into innocuous and nontoxic substances using less amount of energy, chemicals and time. The study was aimed at evaluating the possibility of growth of the indigenous bacteria isolated from oil-polluted soils, in the presence of PAH compounds in the laboratory, and also identifying them by using the method of PCR. Material and Methods: Specimens of the research were isolated from environmental gasoline and oil-polluted soils from the Isfahan City refinery. Initially, the native bacteria were separated from the contaminated soil with such compounds by utilizing a basic medium containing the concentration of 12.8 mg/l in 16 PAH compounds. Then, those bacteria which were able to grow and reproduce in the presence of the compounds identified through biochemical experiments and determination of genome sequence and consequently registered as new species. Results: The results obtained in the study substantiated that approximately 13.3% of the total heterotrophic bacteria possess a degradable ability of the hydrocarbons. After the evaluation of biochemical tests and gene sequencing, it was disclosed that the isolated indigenous bacteria belonged to Bacillus licheniformis ATHE9, Bacillus mojavensis ATHE13 and a particular species of Bacillus (ATHE10). Conclusion: The results of the present research verify the importance and proficiency of the native bacteria in the terms of the elimination of PAHs pollutions in contaminated areas. Manuscript profile -
Open Access Article
310 - Comparison of bacterial culture, ELISA and PCR techniques for detection of salmonella in poultry meat samples collected from Tehran
Mohsen Hosseinpour Azar Sabokbar Amir Bakhtiari Shahnaz Parsa -
Open Access Article
311 - بررسی اثر راهبری شرکتی و ریسک شهرت بر رابطه بین حداقلسازی هزینه مالیات و واکنش قیمت سهام
علی اسماعیل زاده مهدی اسکافی اصل فرزاد ناظمی -
Open Access Article
312 - Investigating the effect of emotional factors on consumer reaction to online shopping with the mediating role of Rational choice theory
Donya Bavi soheila zarin jouy alvar Shahin رازThe dramatic increase in the Internet for buying and ordering goods or services in Iran has faced researchers and managers with new challenges in understanding consumer behavior. The main purpose of this study was to investigate the effect of emotional factors on consum MoreThe dramatic increase in the Internet for buying and ordering goods or services in Iran has faced researchers and managers with new challenges in understanding consumer behavior. The main purpose of this study was to investigate the effect of emotional factors on consumer response to online shopping with the mediating role of rational choice theory. To collect the data, an online questionnaire was distributed among 384 online users of Digikala with a validity and reliability coefficient of 0.875 Descriptive statistics, inferential statistics and structural equations have been used to analyze research data and test hypotheses. The results showed that emotional factors can directly and indirectly affect the consumer reaction with the mediating role of logical factors. Personalized ads tailored to the customer's preferences play an important role in their intent to buy, and if users feel secure about providing their information to the store, their emotional vulnerability can be reduced. Manuscript profile -
Open Access Article
313 - On the Design of Extended State-Dependent Differential Riccati Equation Controller for Nonlinear Reaction-Advection-Diffusion Partial Differential Equation with Multiple Delays
Fariba Bouzari Liavoli Ahmad Fakharian Hamid KhaloozadehThis paper proposes a sub-optimal Extended State-Dependent Differential Riccati Equation (ESDDRE) controller for nonlinear Reaction-Advection-Diffusion (R-A-D) Partial Differential Equation (PDE) systems with multiple delays. A State-Dependent Riccati Equation (SDRE) is MoreThis paper proposes a sub-optimal Extended State-Dependent Differential Riccati Equation (ESDDRE) controller for nonlinear Reaction-Advection-Diffusion (R-A-D) Partial Differential Equation (PDE) systems with multiple delays. A State-Dependent Riccati Equation (SDRE) is a nonlinear version of Linear Quadratic Regulator (LQR) in optimal control and it is used to analyze nonlinear optimal control problems. Instead of the linearization or the Jacobin procedure, the ESDDRE technique applies a State-Dependent Coefficients (SDC) for parameterization to construct an Extended Pseudo-Linearization (EPL) representation. All of the multiple delays sections in this presentation can be located in the system matrices and input vectors. The control effort of ESDDRE method is derived based on the Hamiltonian equation and also cost function according to the PDE systems. In addition, the L_2 stability is guaranteed by Poincaré inequality and as well as Lyapunov function regarded on the ESDDRE control strategy for the closed-loop system. The simulation results for the nonlinear R-A-D partial differential equation with one and two constant delays indicate that the proposed ESDDRE controller technique is efficient. Manuscript profile -
Open Access Article
314 - A model for predicting stock price reaction delays based on grounded theory
kyvan faramarzi jamal bahrisales Saeed Jabbarzadeh Kangarlouie ali ashtabThe aim of current study was to provide a model for predicting stock price reaction delay based on grounded theory. In the present study,semi-structured interviews have been used as data collection tools and snowball or chain sampling methods and purposeful sampling has MoreThe aim of current study was to provide a model for predicting stock price reaction delay based on grounded theory. In the present study,semi-structured interviews have been used as data collection tools and snowball or chain sampling methods and purposeful sampling has been used to select the sample which based on the principle of theoretical adequacy The research data were analyzed using open, axial and selective coding. Results: In this study, based on 42 conducted interviews, a total of 607 interview codes, 101 sub-categories (concepts) and 11 main categories were extracted. Then the qualitative model of the research is designed and based on the analysis of data (interviews) the link between the categories in the form of causal conditions, contextual conditions, intervening conditions, strategies and consequences has been conducted. The results indicated that macro factors and market shareholders are effective in predicting the stock price reaction delay.On the other hand, according to these affecting factors, strategies to improve the stock price reaction delay prediction, including the establishment of corporate information and financial statements, corporate information, market performance criteria, management and corporate control which are aroused in the context of affecting factors and interferers, are presented. Manuscript profile -
Open Access Article
315 - The Momentum Effect in the Tehran Stock Market: Risk Hypothesis vs. Under-reaction Hypothesis
Ali Tavakoli Seyyed Jalal Sadeghi sharif mohammad osoolianThe purpose of this research is to investigate two controversial cases about the momentum in the Tehran Stock Exchange. These two cases include risk theory and under-reaction theory. This research will be followed in two parts. The first part tries to explain the moment MoreThe purpose of this research is to investigate two controversial cases about the momentum in the Tehran Stock Exchange. These two cases include risk theory and under-reaction theory. This research will be followed in two parts. The first part tries to explain the momentum with respect to risk. The second part describes the excess return in momentum portfolios with the under-reaction hypothesis. The research hypotheses have been examined using the data of 58 non-financial companies from the Tehran Stock Exchange between 1389 and 1398. The results show that the risk-adjusted momentum profit is statistically significant. In addition, the results show that the five-factor risk model is not able to explain the momentum effect. However, the momentum effect can be explained by using the under-reaction hypothesis. The under-reaction is asymmetric for first six month after the earning announcement date. In general, the findings also rejects the efficient market hypothesis in favor of the under-reaction theory. Manuscript profile -
Open Access Article
316 - Investor's reaction towards the mental and objective stability of profit components in financially distressed companies
kaveh parandin babak jamshidinavid Mehrdad Ghanbari afshin baghfalakiThe purpose of this study was to study the reaction of investors to the objective and objective suspicion of profit components in suspected financial distress in a 11-year period from 1386 to 1396 with 1320 views in 120 companie MoreThe purpose of this study was to study the reaction of investors to the objective and objective suspicion of profit components in suspected financial distress in a 11-year period from 1386 to 1396 with 1320 views in 120 companies accepted in Tehran Stock Exchange. To analyze the data and test the hypotheses, the simulation model of Mishkin (1983) and the multivariate regression model were used using the Eviews software version 10 has been used.The findings of the research indicate that investors have the mental sustainability of cash components and earnings accruals in relation to the objective stability of cash components and earnings accrual, more than actually they value it.Therefore, investors are pricing inappropriately, the profit of companies suspected of financial distress and the capital market is not as efficient as the components of profit information. In other words, companies suspect financial distress, the investors' incorrect responses and inappropriate pricing of them. Manuscript profile -
Open Access Article
317 - The Effect of Managers Myopia on Investors Behavior in the Capital Market
seyed hamed naghibi esfahani Mohammadreza AbdoliThis research aims to measure the stock market reaction to the manager’s myopia. Manager myopia tends to increase the current stock prices and inflate the current profitability by decreasing long term profitability or increasing cash flows. The statistical popula MoreThis research aims to measure the stock market reaction to the manager’s myopia. Manager myopia tends to increase the current stock prices and inflate the current profitability by decreasing long term profitability or increasing cash flows. The statistical population of this research is all companies listed on Tehran Stock Exchange during the years 1385 to 1394 (Hijri calendar). After applying some filters and restrictions, 117 companies were selected and investigated. The results indicate that myopia does not have a significant negative impact on abnormal returns, obtained at the time of profit report. Overall results indicate that the capital market in the form of efficiency (stocks and time of profit report) don’t have significant reaction to manager’s myopia. In the same time, manager’s myopia has a positive significant effect on return on future assets, as a measure of future financial performance. In summary, the results indicate that the capital market doesn’t react to manager’s myopia but manager’s myopia affects future financial performance of investigated companies. Manuscript profile -
Open Access Article
318 - An Application of Intelligent Algorithms in Solving Chemistry Problems.
Hossein Jafari Setareh Salehfard Masoumeh Danesh Shakib -
Open Access Article
319 - STUDY OF OIL SPILL ON THE SEA SURFACE IN THE PRESENCE OF THERMAL AND CONCENTRATION BUOYANCY EFFECTS
Nirmala P Ratchagar S. V. Hemalatha -
Open Access Article
320 - DISPERSION OF CONTAMINANTS IN GROUNDWATER WITH CHEMICAL REACTION
Nirmala P. Ratchagar S. Senthamilselvi P. Meenapriya -
Open Access Article
321 - Novel Bio-nanopackaging Based on Polylactic Acid/Roselle Calyx Extract/ to Enhance Quality of Hazelnut
Narmin Nabeghvatan Sahar Kabiri Neda Sadat Aghayan Somayyeh Farhang Holighi Davoud Jafarzadeh Rose LesonActive biodegradable films prepared from polylactic acid (PLA)/roselle calyx extract (RCE)/Zinc Oxide Nanorod (ZnO-N) were fabricated as natural packaging materials for hazelnuts protection against microbial contamination and lipid oxidation. The PLA active films with Z MoreActive biodegradable films prepared from polylactic acid (PLA)/roselle calyx extract (RCE)/Zinc Oxide Nanorod (ZnO-N) were fabricated as natural packaging materials for hazelnuts protection against microbial contamination and lipid oxidation. The PLA active films with ZnO-N (1, 3, and 5% w/w), and roselle calyx extract (0.5 g) were made by the casting solution technique. The fungal, microbial, chemical, and sensory properties of hazelnuts were measured during 9 months of conservation at 4°C. On the 6 and 9th months, moisture content was evaluated as %2.6 and 2.2% in the control sample whereas the moisture content of hazelnuts was measured as 3.6% and 2.9% packaged with PLA/RCE/%5 ZnO-N. At the last of experiments, the peroxide value (PV) was measured as 0.91 meq O2 kg-1 packaged with neat biocompatible films, whereas PV value was detected as 0.65 meq O2 kg-1 in packaged hazelnuts with %5 ZnO-N. Total microbial count ranged between 4.9 cfu g-1 for hazelnuts packaged with neat PLA and 3.7 cfu g-1 for hazelnuts specimens packaged with %5 ZnO-N after 9 months of storage. At 9 months, by increasing the level of ZnO-N from 1% to 5%, the mold count was reduced from 3.64 to 3.01 CFU g-1. The fungal contamination in the neat specimens was 3.95 CFU g-1. Sensory quality indicated that hazelnuts with ZnO-N had a significant impact on flavor and aroma, and the highest quality of sensory evaluation was related to hazelnuts packaged with PLA/5% ZnO-N/RCE. Flavor and aroma indices of hazelnuts packaged with %5 ZnO-N reached 3.5 and 4.5 respectively after 9 months of storage. The obtained findings indicate that biopackaging could be utilized to enhance microbial quality and inhibit oxidation reactions of hazelnuts during cold storage. Our results could be beneficial for introducing attractive characteristics to the biodegradable film packaging for example active film containing anthocyanin/nanofiller and can be applied when selecting a smart packaging for detection of food spoilage. Manuscript profile -
Open Access Article
322 - The Effect of Roselle Calyx Extract and Nano-ZnO Biofilm on Walnut's Chemical and Sensory Properties
Neda Sadat Aghayan Maede Sadat Abbasi Anna Etemadi Razlighi Atousa Kokabian Neda Fallah Grace Morine -
Open Access Article
323 - Boron trifluoride etherate; highly efficient catalyst for synthesis of tert-butylamides via modified Ritter reaction in solvent free condition
Masoud Mokhtary Faranak Najafizadeh -
Open Access Article
324 - Synthesis and characterization of new heat-resistance polymers based on N- (4-carboxy phenyl) trimellitimide and aromatic diamines
Khalil Faghihi Mohammad Jalalian -
Open Access Article
325 - SbCl5.SiO2: an reusable lewis acid for one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones (thiones)
Bi Bi Fatemeh Mirjalili Esmat Mohammadnejad Abdolhamid Bamoniri -
Open Access Article
326 - A two-dimensional numerical model of a planar solid oxide fuel cell
Norouz Mohammad Nouri Amin Mirahmadi Majid Kamvar -
Open Access Article
327 - Synthesis of open chain analogue of 1,8-dioxooctahydroxanthene catalyzed by aluminosilicate MCM- 41
Soheil Sayyahi Vali Zare-Shahabadi Maryam Rastroshan Rashid Badri -
Open Access Article
328 - Glutamic Acid as an Environmentally Friendly Catalyst for One-Pot Synthesis of 4H-Chromene Derivatives and Biological Activity
Farhad Hatamjafari -
Open Access Article
329 - Effect of Hydrogen Peroxide Concentration in Remediation of Oil-contaminated Soils with Use of Fenton Reaction
A. S. Yousefi A. Bostani -
Open Access Article
330 - Adsorption of Copper (II) Ions on a Montmorillonite Clay and its Application as Heterogeneous Catalyst for Knoevenagel Condensation Reaction
Hanane Essebaai zakaria Benzekri Houda Serrar Ahmed Lebkiri Said Boukhris Said Marzak ElHousseine Rifi -
Open Access Article
331 - Synthesis and Study of the Effect New Pyrazoles and Oxadiazole Linked to the 1,4-Dihydropyridine Ring on Breast Cancer
Adiba Saaduldeen Ali Tahseen Saddam Fandi Al-Mathkuri -
Open Access Article
332 - Multicomponent Reactions Synthesis of Triaryl-1H Imidazoles Using Reductive-oxidative Reactions by MnO2-FeSO4 as a Catalyst
Ali A.Raheem Ali T.Saleh -
Open Access Article
333 - Synthesis of Lanthanum Hexaaluminate (LaMgAl11O19) Powder in order to plasma spary coating on the nickel superalloy as Thermal Barrier coating
mohammad mehdi khorramirad محمد رضا رحیمی پور سید محمد مهدی هادوی کوروش شیروانی جوزانیLanthanum hexaaluminate (LaMgAl11O19) as a new thermal barrier coating due to the properties and superior features is selected as a preferred composition instead of yttria -stabilized zirconia (YSZ) Composition. In this paper, synthesis of this composition by solid stat MoreLanthanum hexaaluminate (LaMgAl11O19) as a new thermal barrier coating due to the properties and superior features is selected as a preferred composition instead of yttria -stabilized zirconia (YSZ) Composition. In this paper, synthesis of this composition by solid state reaction method was investigated then it was prepared to coat by atmospheric plasma spraying (APS) method. Scanning electron microscope with X-ray microanalysis (SEM-EDS), differential thermal analysis (TGA/DTA), X-ray diffraction (XRD) were used to characterize of the synthesized powder, granules and free standing as-sprayed LaMgAl11O19 coating. In this research first, α-Al2O3 powder was used as a raw material. The results showed that this material was not suitable for the synthesis of this compound. Therefore γ-Al2O3 powder was used. As a result of that, a single phase compound with plate-like morphology was formed and the synthesis temperature was 1330 Cº. Also α-Al2O3, LaAlO3 and MgAl2O3 compounds were formed at 850-1100 ºC that the final phase transformation was occurred due to reaction between these three compounds. From the phase analysis results, it can be concluded that the main role of γ -Al2O3 phase in structure is to reduce the synthesis temprature of MgAl2O4 spinel phase to a temperature of less than 1100 ºC. Also chemical analysis results of granules and APS coating with optimal parameters indicated the existence of single phase structure and the second phase was not found. Manuscript profile -
Open Access Article
334 - Carbothermic reduction of nickel oxide
Sahar S. Bakhshandeha Nader Setoudeh Mohammad Ali Askari Zamanic Abbas MohasselMixtures of nickel oxide and activated carbon (99% carbon) with stiochiometric ratio were milled for different times in a planetary ball mill. The stiochiometric ratio of mixture was prepared in an un-milled condition. The unmilled mixture and milled samples were subjec MoreMixtures of nickel oxide and activated carbon (99% carbon) with stiochiometric ratio were milled for different times in a planetary ball mill. The stiochiometric ratio of mixture was prepared in an un-milled condition. The unmilled mixture and milled samples were subjected to thermogravimetric analysis (TGA) under an argon atmosphere and their solid products of the reduction reaction were studied using XRD experiments. TGA showed that the reduction of NiO started at ~800℃ and ~720℃ in un-milled and one-hour milled samples respectively whilst after 25 h milling it decreased to about 430℃. Increasing the amount of carbon more than stiochiometric ratio did not affect on the kinetics of carbothermic reduction. Thermodynamics assessments for NiO-C system were done using HSC software. Thermodynamics assessment and the experimental results indicated that Boudouard reaction plays a significant role in the carbothermic reduction reaction of nickel oxide. The results revealed that formation and increasing of monoxide carbon gas (COg) can change the kinetic reaction mechanism into solid-gas mechanism which has the major effect on increasing the rate of reaction. The decrease in the particle size/crystallite size of the nickel oxide in the milled samples not only resulted in decreasing in the reaction temperature, but also resulted in formation of fine particles of metallic nickel. Therefore, it is possible to achieve the metallic nickel particle in the range of submicron or nanometer via carbothermic reduction reaction of NiO using mechanical activation of NiO-C mixture. Manuscript profile -
Open Access Article
335 - Phylogenetic Relationship of Yellowtail Scad (Atule mate) in the Persian Gulf and Oman Sea Using Cytochrome Oxidase I Gene
Mahzad Shakouri Pargol Ghavam Mostafavi Mohammad Pourkazemi Seyyed Mohammadreza FatemiGenetic analysis of fish populations is essential for conserving biodiversity and increasing knowledge about the survival of species, and finding the factors threatening or contributing to the survival of these populations. The present study is aimed at investigating ph MoreGenetic analysis of fish populations is essential for conserving biodiversity and increasing knowledge about the survival of species, and finding the factors threatening or contributing to the survival of these populations. The present study is aimed at investigating phylogenetic relationship of Yellowtail Scad in the northern Persian Gulf and Oman Sea by sequencing mitochondrial Cytochrome Oxidase I gene. Ninety yellow tail Scad have been collected from Bandar Abbas, Bushehr, and Chabahar port. Genomic DNA was extracted using Ammonium acetate method. After electrophoresis on 1% agarose gel, Cytochrome Oxidase I (COI) gene was amplified by Polymerase Chain Reaction (PCR), using pair of primers. After sequencing of PCR product, the phylogenetic tree was drawn by MEGA7 software with different methods (Maximum Likelihood, Maximum Parsimony, and Bayesian) using (Esox lucius) as an extraspecific group. All samples from Bandar Abbas, Bushehr, and three samples from Chabahar port were located in the same clade. Chabahar sample with a little more distance was located in separate clade and due to high supportive degree (bootstrap) showed sister group relationship. Moreover, these two clades were located with more evolutionary distance from extraspecific group. Consequently, COI gene sequencing was an appropriate and reliable method for phylogenetic relationship of Yellowtail Scad, providing useful information about protection and management of this valuable species. Manuscript profile -
Open Access Article
336 - Prevalence of BVD in bovine aborted fetuses of dairy cattle herds by RT� PCR in Tehran province
آریا Badii, فرهاد Mousakhani, علی Zolfaghari, محسن Zafari, , M MalekanBovine viral diarrhea disease virus (BVDV) from flaviviridae family and pestiviruses can cause reproductive complications including abortion, stillbirth, infertility, congenital defects and many other economic losses. Becauseof diffcult clinical diagnosis, many laborator MoreBovine viral diarrhea disease virus (BVDV) from flaviviridae family and pestiviruses can cause reproductive complications including abortion, stillbirth, infertility, congenital defects and many other economic losses. Becauseof diffcult clinical diagnosis, many laboratory methods including reverse transcriptase polymerase chain reaction(RT-PCR) can be used to exact diagnosis.In this study, 251 samples of aborted fetuses were referred from industrial dairy farms of Tehran province andevaluated in a reference laboratory during one year. samples tested were tissues, including liver, kidney, spleenand heart were the fetus.Based on the results, the estimated prevalence of abortion due to BVD in Tehran province was 25.2% and basedon the season, respectively, spring 33.3%, summer 18%, atom 34.2%, winter 23.7%.In order to reduce the prevalence of BVD abortions the following points should be noted: identifcation and elimination PIs, vaccination, application of bio-security principles and etc Manuscript profile -
Open Access Article
337 - This research goal was to submit a model of return on investment (ROI) measurement to assess Master of Art (M.A) courses of organization
محمد صالحی مجید ربیعی دولابیThis research goal was to submit a model of return on investment (ROI) measurement to assess Master of Art (M.A) courses of organization. This was an applied research in descriptive framework, kind of survey and its population was consisting of all M.A graduated which i MoreThis research goal was to submit a model of return on investment (ROI) measurement to assess Master of Art (M.A) courses of organization. This was an applied research in descriptive framework, kind of survey and its population was consisting of all M.A graduated which include N = ٧٥. Sample is chosen based on Morgan table including ٦٢ people. Stratified sampling was used randomly. For collecting data, library and field methods are applied. Research was done in two phase. During the first phase, a focus group was convened to identify the components of financial a non financial benefits of program, and M.A costs and also as entry for num١ questionnaire of current research. Within second phase two questionnaires was set to assess and measurement of ROI. Witch first one included ٣٤ questions that contained ٥parameter and second one included ١٧ test that that contained ٤ parameters through in ٥-level Likert scale. Collected data was classified in SPSS and the amount of reliability coefficient was calculated by Cronbach Alpha method (٠/٩٣٦) for this tool. The main goal of this study was to submit a model to measure the ROI for organization (M.A) courses assessment. The research achievement led to determining the components of ROI model. Which was represent with model, never the less recognizing of M.A course and proms, measurement of changed done in organizational results and above mention of the added value courses measurement in different levels of ROI model was lone. There for based on the results and compliance of them with past researchers and current theories, it concluded that submitted framework is well theoretical and experimental supported and is credible enough and its performance purposes to measure the ROI to assess organization M.A was suggested Manuscript profile -
Open Access Article
338 - Effectiveness of Neurofeedback Training in Cognitive Performance
Fariba Nabavi Al Agha Farah Naderi ali reza Heidari Hasan Ahadi Mohammad Ali NazariCognitive processes, such as attention span and reaction time play a key role in a variety of practical realms. An effective method which can be applied to increase the concentration, attention and also the alteration of reaction time is neurofeedback training. The rese MoreCognitive processes, such as attention span and reaction time play a key role in a variety of practical realms. An effective method which can be applied to increase the concentration, attention and also the alteration of reaction time is neurofeedback training. The research purpose is to assess the effectiveness of neurofeedback training in the attention and reaction time of novice tennis players. Therefore,a sample of 36 volunteers was randomly selected and assigned to experimental group (real neurofeedback) and placebo group (simulated neurofeedback),through employing a semi-experimental method with pre-test, post-test and control group design.Both groups were assessed in terms of attention span and reaction time prior and subsequent to the training. The result of difference variance analysis indicated that neurofeedback training is effective in decreasing the reaction time. However, no support was found in terms of attention span. Overall, it can be concluded that neurofeedback training is effective in the enhancement of cognitive performance, particularly, the decrease of reaction time. Manuscript profile -
Open Access Article
339 - Predicting Children's Anxiety Based on Parents' Reaction to Their Negative Emotions with Mediating Role of Emotion Regulation
parvaneh roitvandghiasvand maryam esmaeilinasab emad ashrafiGiven the prominent role of the family in the mental health of child, it seems reasonable to predict family-based factors because the family is considered as a socio-cultural system that has a set of rules; So that the impact of family on members is such that many resea MoreGiven the prominent role of the family in the mental health of child, it seems reasonable to predict family-based factors because the family is considered as a socio-cultural system that has a set of rules; So that the impact of family on members is such that many researchers consider them as a main cause of disorders. The aim of this study was to predict children's anxiety based on parents' reactions to their negative emotions with mediating role of emotion regulation. In this respect, a descriptive-correlational study was performed and 232 preschool children and their parents in the city of Tehran were selected through the convenience sampling method and investigated in terms of children's anxiety symptoms, coping with children's negative emotions, and emotion regulation. Multiple regression analysis and Bootstrap and Sable tests showed that parents' reaction to children's negative emotions affects children's anxiety by emotion regulation. Parents' reaction also predicted anxiety and emotion regulation, and emotion regulation predicted children's anxiety as well. It seems that just as parents' reaction to children's negative emotions play a role in children's anxiety, so does children's emotion regulation play an important role in their anxiety. It can be expected appropriate emotion regulation in children is as a barrier to parents' inappropriate reaction and anxiety caused by it. Manuscript profile -
Open Access Article
340 - A Comparison of Recognition of Facial Emotion Expressions in Children with Autism Spectrum Disorder and Normal Children
Mahsa Ahadian Hamid Poursharifi layli PanaghiOriginally, children recognize other people’s emotional expressions through an emotional transmission process that is approximately automatic. Happiness, sadness, fear and anger are some of the main internal emotions which can be directly perceived by facial expre MoreOriginally, children recognize other people’s emotional expressions through an emotional transmission process that is approximately automatic. Happiness, sadness, fear and anger are some of the main internal emotions which can be directly perceived by facial expressions. Children’s reaction to the emotions demonstrate their ability to recognize and interpret them. Researches evaluating Deficit in emotional recognition of autistic children leads to conflicting results. The aim of this study is to compare recognition of six basic facial expressions and reaction times in children with and without autism spectrum disorder. For this purpose, utilizing a comparative research design, 20 children with autism spectrum disorder - selected by the use of convenience sampling method- were compared with 20 typically developing age-matched control subjects in facial emotional recognition and reaction time. Multivariate Covariance Analysis results showed significant differences between two groups in reaction time and recognition of emotions. It was revealed that performance of autistic children in facial emotion recognition was slower and less accurate than normal children. In this study, it is confirmed that children with autism spectrum disorder have a deficit in recognizing emotional expression in faces. Manuscript profile -
Open Access Article
341 - Effectiveness of Bowen systemic therapy on chronic anxiety and lifestyle
Fatemeh Gharehbaghy Mohammad Ali Besharat Reza Rostami Masoud Gholamali LavasaniLifestyle and chronic anxiety are two basic causes of chronic diseases and family emotional system is one of the sources of chronic anxiety. The aim of this study was to design and evaluate an intervention based on Bowen family systems theory for improving health behavi MoreLifestyle and chronic anxiety are two basic causes of chronic diseases and family emotional system is one of the sources of chronic anxiety. The aim of this study was to design and evaluate an intervention based on Bowen family systems theory for improving health behaviors and reducing chronic anxiety in couples who had chronic anxiety symptoms in family emotional system. For this purpose, through a semi-experimental research and using accessible sampling, 38 couples were selected and considered in two experimental and control groups randomly. Before, after and after 2 months of intervention, they were evaluated according to genogram and lifestyle. The family-based and psycho-educative intervention was designed and applied in 7 sessions. Data analyses using variance analysis and repeated measures indicated that this intervention improves health behaviors and reduces chronic anxiety significantly. These findings could be used in therapeutic programs for anxiety, preventing chronic diseases and presenting a new model in health psychology based on the role of interpersonal relationships and emotional factors in health and lifestyle. Manuscript profile -
Open Access Article
342 - Examination and comparison of cognitive speed and reaction and decision time in schizophrenia and bipolar patients
Behrooz Afshari Jila HasaniSchizophrenia and bipolar disorders are associated with impairment in cognitive functions, and the cognitive profile of these two disorders is similar. However, cognitive defects in these patients may follow different paths. The purpose of the present study was to evalu MoreSchizophrenia and bipolar disorders are associated with impairment in cognitive functions, and the cognitive profile of these two disorders is similar. However, cognitive defects in these patients may follow different paths. The purpose of the present study was to evaluate and compare the cognitive speed and reaction and decision time in schizophrenia and bipolar patients. For this purpose, in a comparative study, forty patients with schizophrenia, 40 patients with bipolar disorder, and 40 healthy individuals were selected through available sampling, and were tested for positive and negative symptoms of schizophrenia, mania, depression, trial making, reaction time, and general intelligence. The results of Tukey's test showed that cognitive speed and reaction and decision time in bipolar disorder were lower than schizophrenia disorder and healthy individuals, it was also found that the cognitive speed and reaction and decision time in both schizophrenia and bipolar disorders were significantly lower than healthy individuals. This study showed that cognitive functions have been destroyed in schizophrenia and bipolar disorders, and these patients show a lower performance at cognitive speed and reaction and decision time than in healthy individuals. The findings showed that cognitive speed and reaction and decision time in bipolar patients were weaker than schizophrenia disorder. It seems that the study of cognitive functions such as cognitive speed and reaction and decision time in schizophrenia and bipolar patients can help to understand the pathology of these disorders. Manuscript profile -
Open Access Article
343 - Studying the relationship between reactions to the stuttering and quality of life experienced by individuals affected by stuttering
Atena Emami Meibodi Shokohosadat Banijamali Seyedeh Monavar Yazdi Meisam Shafiei Atefeh MoazeniOccasionally, the speech abilities of individuals are impaired for known or unknown reasons and stuttering is one of these deficiencies. There are particular emotional, behavioral, and cognitive characteristics in stutters’ speech and manner that are specifically MoreOccasionally, the speech abilities of individuals are impaired for known or unknown reasons and stuttering is one of these deficiencies. There are particular emotional, behavioral, and cognitive characteristics in stutters’ speech and manner that are specifically related to feelings, behaviors, and attitudes associated with the process of communication. The purpose of this study is to determine the relationship between cognitive, emotional, and behavioral reactions to the stuttering and the quality of life experienced by individuals who suffer from stuttering. Therefore, through a descriptive correlative research, 50 individuals diagnosed with stuttering were selected through convenience sampling method from clients population referred to Speech Therapy Clinic in Esfahan and evaluated for their experience of stuttering (the Overall Assessment of the Speaker's Experience of Stuttering Questionnaire (OASES-A). Data analysis by correlation matrix and multiple regressions determined that there is a negative and significant correlation between cognitive, emotional and behavioral responses to stuttering and the severity of impact of stuttering on individual's life experience. Furthermore, cognitive, emotional and behavioral reactions can predict the severity of stuttering effect on the quality of life experienced by individuals who suffer from stuttering. Hence, timely intervention by appropriate professionals seems necessary. Manuscript profile -
Open Access Article
344 - Investigation of Fe-Cu-Sr/ γ-Al2O3 catalyst performance in Fisher- Tropsch synthesis: Pressure effect
Marziyeh Rahimi Mashkaleh Yahya Zamani sahar baniyaghoob Ensiyeh Ganji BabakhaniFischer-Tropsch synthesis (FTS) is conducted on the catalysts such as Al2O3, SiO2, TiO2 and ZrO2 supported with metals like Co, Fe or Ru. While hydrogen to CO ratio is low, the Iron supported catalysts are more useful to produce alkenes, branched hydrocarbons and oxygen MoreFischer-Tropsch synthesis (FTS) is conducted on the catalysts such as Al2O3, SiO2, TiO2 and ZrO2 supported with metals like Co, Fe or Ru. While hydrogen to CO ratio is low, the Iron supported catalysts are more useful to produce alkenes, branched hydrocarbons and oxygenates due to Iron's water-gas-shift (WGS) activity. The aim of this article is to produce C5+ hydrocarbon product from synthetic gas using Fe-Cu-Sr/ γ-Al2O3 nano-sized catalyst. The nano iron-based catalyst was synthesized by wet impregnation method. The synthesized catalyst (18Fe/4Cu/2Sr/ γ-Al2O3) was characterized by XRD, BET, ICP, SEM and H2-TPR techniques. Effect of reaction pressure on the product selectivity and catalyst activity was investigated in CO hydrogenation reaction. The nano catalyst was loaded in a fixed-bed reactor and tested in pressure of 16 and 20 atm, at temperature of 290 oC, with H2/CO ratio of 1 and GHSV of 2 l.h-1.g cat-1. The results demonstrated that with increasing reaction pressure, the CO conversion and C5+ selectivity increased from 63.8% and 44.03% to 78.3% and 46.2%, respectively. Manuscript profile